APIs for research and impurities

<p>N-Formyl-D-leucine (1S)-1-[[(2S,3S)-3-hexyl-4-oxo-2-oxetanyl]methyl]dodecyl ester is a research and development impurity standard that is used to assist in the production of high purity drug products. It is a synthetic compound that is metabolized in vivo to form N-formylglycine. This impurity standard can be used as a reference material for pharmacopoeia, drug development, and metabolic studies.</p>

<p>Adefovir dipivoxil dimer is a synthetic and natural product that is used as an analytical standard for HPLC, as well as in the development of new drug products. It is also used to identify impurities in API. Adefovir dipivoxil dimer has CAS number 323201-05-4 and can be found on the FDA Orange Book.</p>

<p>Levofloxacin hydroxy acid is a high purity, drug product with a HPLC standard. It is used for drug development and research. Levofloxacin hydroxy acid has been developed as an analytical reference standard for the detection of impurities in API manufacturing. The pharmacopoeia includes levofloxacin hydroxy acid as an impurity standard. Levofloxacin hydroxy acid is also used in metabolism studies to investigate the role of levofloxacin's active metabolite, M-2, on the activity of CYP2C8 and CYP3A4 enzymes.</p>

<p>3,4-Dihydroxyphenylacetic acid-d5 is a drug product that is used as an impurity standard for HPLC. It has been shown to be a metabolite of 3,4-dihydroxyphenylacetic acid and may be found in the urine of patients taking drugs containing this compound. The stability of 3,4-dihydroxyphenylacetic acid-d5 in biological matrices has been determined by incubation studies with rat liver homogenates. This product is also used as an analytical reagent for the detection of other metabolites or impurities in drugs.</p>

<p>Ascolactone is a natural compound with potent anticancer properties. It is an analog of a medicinal plant used in Chinese traditional medicine. Ascolactone has been shown to induce apoptosis, or programmed cell death, in human cancer cells by inhibiting the activity of certain kinases involved in cell cycle regulation and tumor growth. Ascolactone acts as a protein inhibitor that blocks the function of specific proteins required for cancer cell survival and proliferation. This compound has potential therapeutic applications for various types of cancer and may be developed into novel inhibitors for cancer treatment. Ascolactone can be isolated from urine samples and represents a promising avenue for drug discovery research.</p>

<p>Tobramycin Impurity 4 dihydrochloride (Mixture of Isomers) is an analytical standard that is used in the manufacture of drugs. It is a mixture of two dihydrochloride isomers, which have been separated by high-performance liquid chromatography (HPLC). The impurity's purity is determined by HPLC and it has a retention time of 8.8 minutes. This impurity can be used to create a pharmacopoeia reference standard or as an analyte for the determination of drug product quality.</p>

<p>Dimethylaminoethyl methacrylate is a chemical compound that belongs to the group of dimeric monomers. It is an activated form of methacrylates, which are compounds containing the -C(O)OC-CH2-CH2-O-CO-R functional group. The activated form is prepared by the reaction of a primary amine with acetic acid and acrylic acid. Dimethylaminoethyl methacrylate has been used as a carbohydrate adduct to create glycoconjugates and it has been shown to have anti-mutagenic properties. This product can be found in high concentrations in China.</p>

<p>Aceclofenac is a nonsteroidal anti-inflammatory drug (NSAID) that inhibits the production of prostaglandins, which are produced by inflammatory cells in response to tissue injury. It is used to treat pain and inflammation. Aceclofenac is absorbed quickly from the gastrointestinal tract and has a high bioavailability. The maximum plasma concentration is reached within 1 hour after oral administration. Aceclofenac has a short half-life of about 2 hours. This drug binds to fatty acids and hepatoprotective substances, such as polymers, pyruvic transaminase, acetate extract, and humans. It also inhibits the transcription of cyclooxygenase-2 (COX-2), which produces prostaglandins that are involved in various aspects of inflammation.</p>

<p>Defluoro flunarizine dihydrochloride is a research and development drug product that is synthetic. It is an impurity standard, which is used as an analytical reference to determine the purity of a drug product. Defluoro flunarizine dihydrochloride is also an API impurity. The metabolite of this compound has not been fully characterized, but it may be similar to the natural metabolite of Flunarizine. HPLC standards are used for quality control during analysis and synthesis of drugs in the pharmaceutical industry.</p>

<p>4-Desfluoro-4-[4-(2-oxo-2,3-dihydro-1H-benzimidazol-1-yl)-3,6-dihydropyridin-1(2H)-yl] droperidol is a research chemical that belongs to the class of drugs. The 4DDRP is an analytical standard for impurities in droperidol and also has been used as an API impurity in HPLC standards. The chemical is also used for drug development and drug product synthesis. 4DDRP has been shown to be metabolized into oxalic acid, benzeneacetic acid, and benzoic acid.</p>

<p>1,3-Thiazol-5-ylmethyl N-[(1S,2S,4S)-4-(acetylamino)-1-benzyl-2-hydroxy-5-phenylpentyl]carbamate is a drug product that has been formulated as an HPLC standard and is used in drug development and research. This chemical is also a metabolite of the active ingredient esterified on 1,3-thiazole moiety. It can be synthesized by reacting methyl acrylate with 5-(hydroxymethyl)isoxazole followed by reaction with triethylamine. In addition to being used as an analytical standard for impurities in API's, it is also used for metabolism studies.<br>Molecular Formula: C24H31N3O4S<br>Molecular Weight: 441.53<br>CAS Number: 1010808-43-1</p>

<p>L-Homocysteinesulfinic acid is an endogenous metabolite of the amino acid homocysteine. It is a reactive molecule that has been shown to cause neuronal death in vitro and in vivo. L-Homocysteinesulfinic acid binds to the NMDA receptor and inhibits its function, which may cause apoptosis. L-Homocysteinesulfinic acid also binds to the alpha2-adrenergic receptor and enhances uptake of glutamate, thereby causing neuronal death. L-Homocysteinesulfinic acid has been shown to be elevated in cancer patients, as well as those with a high risk for developing cancer. This compound is also elevated in individuals with metabolic syndrome and carnitine deficiency, as well as those with occipital cortex damage or brain cells affected by Alzheimer's disease or Parkinson's disease. The mitochondria are the sites of metabolic production and energy conversion processes; they are also responsible for mitochondrial functions such as ATP synthesis and oxidative phosphorylation.</p>

<p>N2-Methyl alfuzosin-D7 is a drug product that belongs to the group of alfuzosin, which is a selective inhibitor of the enzyme phosphodiesterase type 5 (PDE5) and is used for the treatment of benign prostatic hyperplasia. It has been designed to reduce the risk of adverse effects associated with other PDE5 inhibitors, such as erectile dysfunction and urinary retention. N2-Methyl alfuzosin-D7 has been shown to be effective in animal studies and in vitro experiments. However, its metabolism remains unknown.</p>

<p>This product is a synthetic impurity of Allopurinol. It is a cyclization reaction product of dimethylhydrazine and allopurinol in the presence of an organic solvent such as DMF.</p>

<p>Please enquire for more information about 1-[[2-[(2-Aminophenyl)amino]-5-methyl-3-thienyl]carbonyl]-4-methyl-piperazine including the price, delivery time and more detailed product information at the technical inquiry form on this page</p>

<p>2,3-Dimethylphenyl mefenamic acid is a synthetic drug product. It is used as an impurity standard for the HPLC analysis of N-(2,3-dimethylphenyl)mefenamic acid carboxamide, and is also a custom synthesis intermediate. 2,3-Dimethylphenyl mefenamic acid has been shown to be metabolized by liver microsomes in vitro and to inhibit prostaglandin synthesis. In vivo studies have shown that the primary route of elimination of 2,3-dimethylphenyl mefenamic acid is through the urine.<br>2,3-Dimethylphenyl mefenamic acid has been shown to be effective in inhibiting prostaglandin synthesis in vitro and in vivo studies. It has also been shown to be active against gram positive bacteria such as Bacillus subtilis and Staphylococcus aureus (ATCC 25923).</p>

<p>Talaromycesone A is a natural product derived from the fungus Talaromyces erythraeus. It is a metabolite of the antibiotic talaromycin and has been identified as an impurity in the drug product talaromycin sulfate. Talaromycesone A is a metabolite of the antibiotic talaromycin, which is produced by Talaromyces erythraeus, and has been identified as an impurity in the drug product, talaromycin sulfate. The chemical name for this compound is 3-methyl-2-oxo-2H-chromene-6-carboxylic acid (1S,4R)-4-[(3S)-3,4-dimethylphenyl]-cyclohexyl ester.<br>Talaromycesone A was originally isolated from the fungus Talaromyces erythraeus and purified to be used as a reference standard for HPLC analysis</p>

<p>Ciprofibrate-o-β-glucuronide is the major metabolite of ciprofibrate in humans. It can be detected in urine by a variety of analytical methods, including magnetic resonance spectroscopy, voltammetry, and microscopy. Ciprofibrate-o-β-glucuronide is an enantiomer of ciprofibrate and has been shown to have an enzymatic hydrolysis rate of 0.07% per hour. This hydrolysis process is catalyzed by cytochrome P450 enzymes. Ciprofibrate-o-β-glucuronide is also found in pharmaceutical formulations and excreted from the body with a half life of 4 hours.</p>

<p>WAY 181187 oxalate is a metabolite of WAY-361507, a drug that has been studied for the treatment of cancer. The chemical structure of WAY 181187 oxalate is shown below.</p>

<p>Please enquire for more information about 2-Cyclopropyl-1-nitro-naphthalene including the price, delivery time and more detailed product information at the technical inquiry form on this page</p>

<p>Quetiapine is a drug that belongs to the class of sulfoxides. It is usually administered orally, but can also be given intravenously or intramuscularly. Quetiapine has been studied for its clinical use in the treatment of schizophrenia and bipolar disorder. The plasma concentrations of quetiapine are determined by high-performance liquid chromatography (HPLC) with tandem mass spectrometry (LC-MS/MS) detection. Validation studies have shown that the HPLC-MS/MS method is accurate and precise, with good linearity over a range of concentrations. Analysis was performed on plasma samples from healthy volunteers who were administered either 2 mg or 10 mg doses of quetiapine by intravenous injection. Concentrations were calculated and compared to those found in patients with schizophrenia and bipolar disorder who had been given oral doses of 300 mg per day for four weeks, yielding a therapeutic plasma concentration range from 100 to 300 ng/mL.</p>

<p>(Z)-Fluvoxamine-EP is a drug product that is used as an analytical standard. It is a synthetic metabolite of fluvoxamine, which is a drug used for the treatment of depression. The synthesis of (Z)-fluvoxamine-EP is based on the asymmetric synthesis of fluvoxamine and the use of chiral chromatography to purify the product. This synthetic process allows for the production of high-purity (Z)-fluvoxamine-EP with a purity greater than 99%.</p>

<p>[1-Hydroxy-3-(methylisopentylamino)propylidene] bisphosphonic acid monosodium (ibandronic acid impurity) is a metabolite of ibandronate, which is used in the treatment of osteoporosis. It is an impurity found in ibandronate drug products and can be detected using HPLC.</p>

<p>Indoxacarb is a racemic compound that is used as an insecticide. It belongs to the class of carbamate insecticides and is marketed under the trade name of "Provaunt". Indoxacarb inhibits acetylcholinesterase, which leads to increased acetylcholine in the synapse, resulting in death. The production of indoxacarb has been optimized to yield a high-level of stereoselectivity. This optimization was achieved through a biocatalytic process that uses a strain of Escherichia coli with high stereoselectivity. This strain produces indoxacarb with a high level of stereoselectivity, which can be confirmed by NMR analysis.</p>

<p>(-)-Cloprostenol is an analog of prostaglandin F2α and a potent inhibitor of protein kinase C. It has been shown to induce apoptosis in human cancer cells, making it a potential anticancer agent. (-)-Cloprostenol has also demonstrated inhibitory effects on tumor growth in Chinese hamster ovary cells and has been investigated for its medicinal uses in cancer treatment. This compound works by binding to the prostaglandin receptor and activating downstream signaling pathways that lead to cell death. Its ability to inhibit kinases makes it a promising candidate for the development of kinase inhibitors as a new class of anticancer drugs.</p>

<p>Methotrexate-5-monomethyl ester is an analytical standard that is synthesized synthetically. The synthetic route used to produce the compound has been optimized for high purity, making this product suitable for use as a drug product or impurity standard. The structure of methotrexate-5-monomethyl ester was confirmed by 1H and 13C NMR spectroscopy and mass spectrometry. Methotrexate-5-monomethyl ester is an impurity found in the synthesis of methotrexate and is a metabolite of methotrexate. It has been shown to inhibit DNA synthesis and protein synthesis in animal cells, which may be due to its ability to inhibit transcription factors such as NFATc1, NFkB, STAT3, STAT5A and STAT5B.</p>

<p>Alanycarb is a potent protein kinase inhibitor that has shown promising results in the treatment of cancer. It works by inhibiting the activity of kinases, which are enzymes that play a crucial role in cell growth and proliferation. Alanycarb induces apoptosis, or programmed cell death, in cancer cells and has been found to be particularly effective against tumors that are resistant to other anticancer drugs. This analog of cellulose has been tested on human and Chinese urine cancer cells and has shown significant tumor inhibition effects. Alanycarb is one of the most promising inhibitors for the development of new anticancer drugs due to its potent activity against various types of cancer cells.</p>

<p>4-Amino-6-chloro-benzene-1,3-disulfonic acid 1-amide 3-ethylamide is an analytical standard that is used in drug development and as a reference material. It is used to produce the USP/NF standard for HPLC and to develop new drugs. This compound is a metabolite of the drug clonidine hydrochloride. 4-Amino-6-chloro-benzene-1,3-disulfonic acid 1-amide 3-(ethylamide) is also known by its CAS number 166863–9. It has a molecular weight of 328.5 g/mol and it's been approved by the FDA for use in food animals. Impurities found in this compound are: methanol, acetone, formic acid, acetic acid, chloroform and sulfamic acid. This product can be custom synthesized or obtained from natural sources such as plant</p>

<p>5α,6α-Epoxycholestanol-d7 is an impurity of a cholestatic drug product. It can be used as a research and development standard or as an impurity standard in the production of drugs. 5α,6α-Epoxycholestanol-d7 has been characterized by GC/MS and HPLC techniques. This compound is also useful for pharmacopoeia purposes, drug development, and metabolic studies.</p>

<p>Decitabine related compound A is an impurity that is found in the API, decitabine. It is an analytical standard for HPLC measurements and a reference material for impurity testing. It is also used as a pharmacopoeia standard for pharmacopoeias such as European Pharmacopoeia, USP, and Japanese Pharmacopoeia. Decitabine related compound A has been synthesized from natural sources such as plant-derived alkaloids and synthetically produced in the laboratory. CAS No. 1019659-87-0</p>

<p>16alfa-methyl-11beta,21-dihydroxy-6beta,9alfa-difluoropregnane-1,4-diene-3,20-dione-21-valerate is a synthetic drug product with the CAS number of 51622-42-5. The molecular weight is 471.82 g/mol and it has a purity of &gt; 98%. It is an analytical standard for the metabolite of 16alfa methyl 11beta,21 -dihydroxy 6beta,9alfa difluoropregnane 1,4 diene 3,20 dione 21 valerate. This compound also acts as a research and development standard for HPLC and can be used to study metabolism studies.</p>

<p>6,7-Dehydrohyoscyamine (6,7DHHA) is a synthetic alkaloid that is produced by the dehydration of hyoscyamine. It has been shown to be an effective anti-inflammatory agent in both in vitro and in vivo experiments. 6,7DHHA also has a skeleton that is similar to the neurotransmitter acetylcholine, which may account for its effectiveness as an anti-spasmodic drug. This compound has been shown to inhibit the transfer of nerve impulses across synapses by blocking presynaptic acetylcholine receptors. It does this by binding with high affinity to these receptors and preventing them from being activated. 6,7DHHA binds noncompetitively to the receptor site on the acetylcholine receptor and can cross the blood-brain barrier because it is lipid soluble. The biosynthesis of 6,7DHHA starts with two molecules of L-phenylalanine condensed together with one molecule of L-</p>

<p>N-Desmethyl azithromycin B is a metabolite of the macrolide antibiotic azithromycin. It is an impurity in the drug product, and is present as an analytical standard for HPLC. N-Desmethyl azithromycin B can be found in the urine of patients taking azithromycin, but at much lower concentrations than the parent drug. This impurity is not toxicologically relevant, but may interfere with some analytical methods.</p>

<p>Fijimycin B is a medicinal compound that acts as an inhibitor of kinases, which are proteins that play a crucial role in cancer cell growth and proliferation. This analog of the natural product fijimycin has been shown to induce apoptosis (cell death) in tumor cells and exhibits potent anticancer activity. Fijimycin B has been isolated from human urine and Chinese medicinal herbs, and it has been found to be a highly selective inhibitor of certain kinases. This compound shows promise as a potential therapeutic agent for the treatment of various types of cancer. Its ability to target specific kinases makes it an attractive option for developing targeted inhibitors that can selectively kill cancer cells while sparing healthy cells.</p>

<p>Imidaprilat benzyl ester, (carbonylimidazolidine)tert-butyl ester is a drug product that is used to study the metabolism of drugs. Imidaprilat benzyl ester, (carbonylimidazolidine)tert-butyl ester is an impurity standard in the pharmacopoeia. It is also used as an analytical reference material and for research and development. This compound has a CAS number of 89460-20-8 and a molecular weight of 310.2 g/mol.</p>

<p>Pyrimisulfan is a medicinal compound that has shown potent anticancer activity in both human and Chinese hamster cancer cell lines. It is an analog of pyrimidine, a naturally occurring compound found in urine. Pyrimisulfan works by inhibiting the activity of protein kinases, which are enzymes that regulate cell cycle progression and promote cell growth. This inhibition leads to apoptosis, or programmed cell death, in cancer cells. Pyrimisulfan has been shown to be a highly selective inhibitor of certain protein kinases, making it a promising candidate for the development of targeted cancer therapies. Its unique mechanism of action and specificity make it a valuable addition to the arsenal of anticancer inhibitors currently available.</p>

<p>D-Threo-3,4-dihydroxyphenylserine hydrochloride is a potent inhibitor that has been shown to induce apoptosis in various cancer cell lines. It works by inhibiting kinases and proteins involved in the cell cycle, resulting in the inhibition of tumor growth. This compound has been extensively studied for its anticancer properties and has shown promising results in human clinical trials. D-Threo-3,4-dihydroxyphenylserine hydrochloride is derived from Chinese medicinal herbs and can be isolated from urine or synthesized chemically. Its ability to selectively inhibit cancer cell growth makes it a potential candidate for future cancer therapies.</p>

<p>Granisetron is a serotonin 5-hydroxytryptamine 3 (5-HT3) receptor antagonist. It is used in the prevention and treatment of nausea and vomiting caused by cytotoxic chemotherapy, radiation therapy, or surgery. Granisetron hydrochloride is a white to off-white powder with a molecular weight of 476.0. The chemical formula for granisetron hydrochloride is C22H24ClN2O2S. This drug has been shown to be efficient in the prevention and treatment of nausea and vomiting caused by cytotoxic chemotherapy, radiation therapy, or surgery. The potential impurities are as follows: <br>1) 1-Desmethyl 2-methyl granisetron <br>2) 2-Methyl granisetron <br>3) 2-Methyl 3-(4'-hydroxyphenyl)propionitrile <br>4) 2-(4'-Hydroxyphenyl)-3-(</p>

<p>Please enquire for more information about 1-(4-Chloro-3-trifluoromethylphenyl)-3-(4-hydroxyphenyl)urea including the price, delivery time and more detailed product information at the technical inquiry form on this page</p>

<p>9,13β-Dehydro epinastine is a synthetic impurity that is an analytical reference material. It is a metabolite of the drug epinastine and has been shown to have pharmacological activity.</p>

<p>Please enquire for more information about 2-Amino-3H,4H,7H-pyrrolo[2,3-d]pyrimidine-4-thione including the price, delivery time and more detailed product information at the technical inquiry form on this page</p>

<p>Please enquire for more information about 1-[4-Chloro-2-(2-fluorobenzoyl)phenyl]-2-methyl-1H-imidazole-5-carboxaldehyde including the price, delivery time and more detailed product information at the technical inquiry form on this page</p>

<p>Please enquire for more information about 2-(Hydroxymethyl)-1-phenylcyclopropanecarbonitrile including the price, delivery time and more detailed product information at the technical inquiry form on this page</p>

<p>Please enquire for more information about NSC 116339 including the price, delivery time and more detailed product information at the technical inquiry form on this page</p>

<p>Ethyl (S)-1-phenyl-1,2,3,4-tetrahydro-2-isoquinolinecarboxylate is an analytical standard used to identify impurities in drug products. It is a metabolite of the drug product and has been shown to be safe for human consumption. The compound is a synthetic chemical that is not found naturally in the environment. CAS No. 180468-42-2</p>

<p>Methyl 1-C-[4-chloro-3-[(4-ethoxyphenyl)methyl]phenyl]-alpha-D-glucopyranoside is an impurity of Dapagliflozin.</p>

<p>Adenosine cyclic 2',3'-phosphate 5'-phosphate is an inhibitor that has been shown to induce apoptosis in cancer cells. It is a urinary metabolite of nifedipine, an anti-hypertensive drug. Adenosine cyclic 2',3'-phosphate 5'-phosphate has anticancer activity and can inhibit protein kinase A, which plays a role in tumor growth and progression. This compound is an analog of cyclic adenosine monophosphate (cAMP) and can compete with cAMP for binding to regulatory subunits of protein kinases. Adenosine cyclic 2',3'-phosphate 5'-phosphate has been shown to inhibit the activity of several kinases, including protein kinase C, GSK-3β, and ERK1/2 in human cancer cells. It may have therapeutic potential as a targeted therapy for certain types of cancer.</p>

<p>Please enquire for more information about BCL6-IN-5 including the price, delivery time and more detailed product information at the technical inquiry form on this page</p>

<p>Acyclovir Impurity O is an impurity found in the drug Acyclovir. It has been shown to inhibit the synthesis of DNA and RNA, which are necessary for cell division. The impurity has been detected in high purity HPLC standards and is used as a reference material for analytical purposes.<br>Acyclovir Impurity O can be synthesized either naturally or synthetically. It is an impurity that is regulated by the USP, BP, and EP pharmacopeias.</p>

<p>9-(1,3-Dioxolan-2-ylmethyl)-3,9-dihydro-1,3-dimethyl-1H-purine-2,6-dione is a metabolite of the drug 9-(1,3-Dioxolan-2-ylmethyl)-1,3,9 dihydrobenzo[g]pteridine. It is an impurity in the synthesis of 9-(1,3 Dioxolan 2 ylmethyl)-3,9 dihydrobenzo [g]pteridine. The purity of this compound is &gt; 99%, with a melting point range of 233 to 235 °C and a molecular weight of 244.24 g/mol. It is soluble in methanol and acetonitrile. This compound has been characterized by IR spectroscopy (ATR), 1H NMR (400 MHz) spectroscopy (CDCl 3 ), and mass spectrometry (HRMS</p>

<p>Scopine-2,2-dithienyl glycolate is a catalyst that belongs to the class of dithienyl glycolates. Scopine-2,2-dithienyl glycolate is used in the pharmaceutical industry as an average catalyst for reactions and can be used to recover dimethylbenzene. The method of detection for scopine-2,2-dithienyl glycolate is based on its ability to absorb light at a wavelength of 360 nm. The reaction solution must be monitored carefully during the synthetic process because it has been shown that it can react with water or air and form hydrogen sulfide gas. If this happens, the reaction solution will become cloudy or turbid. This product is a white crystalline solid that appears as tiny needles and has a melting point of 173 degrees Celsius (340 degrees Fahrenheit).</p>

<p>Please enquire for more information about FASN-IN-1 including the price, delivery time and more detailed product information at the technical inquiry form on this page</p>

<p>Chlorhexidine digluconate EP Impurity L is a metabolite of chlorhexidine digluconate. It is an impurity found in the drug product, which is used for the treatment of skin and mucous membrane infections. The mechanism of action for chlorhexidine digluconate EP Impurity L is not known. However, it has been shown to be metabolized by CYP3A4 and CYP2C9 enzymes to form chlorhexidine acetate, a metabolite that inhibits bacterial growth, and hydrolyzed by esterases to form 2-hydroxychlorhexidine acetate. This metabolite has been found in the urine of rats following oral administration with chlorhexidine digluconate EP Impurity L.</p>

<p>This compound is a drug product that is used as an analytical standard for the identification of impurities. This compound is also a Metabolism studies, Natural, API impurity, Custom synthesis, Impurity standard, Synthetic and Drug development research chemical. The CAS number for this compound is 170570-01-1 and it has HPLC standards with high purity. This compound is also a Synthetic and Pharmacopoeia Research Chemical with a niche market.</p>

<p>Stafib-2 is an analog inhibitor that has shown potent anticancer activity in human cancer cell lines. It works by inhibiting kinases, which are enzymes that play a key role in regulating cell growth and division. Stafib-2 has been shown to induce apoptosis, or programmed cell death, in Chinese hamster ovary cells and human cancer cells. This drug also inhibits the activity of elastin kinase, a protein that is involved in tumor growth and metastasis. Stafib-2 has potential as a targeted therapy for cancer treatment due to its ability to selectively inhibit specific kinases involved in cancer progression. Its unique mechanism of action makes it a promising candidate for further development as an anticancer agent.</p>

<p>N-Des[2-(1-methyl-2-pyrrolidinyl)ethyl] udenafil is an impurity in the drug product. It is a synthetic compound and is a metabolite of the drug product. N-Des[2-(1-methyl-2-pyrrolidinyl)ethyl] udenafil is present as a byproduct of the metabolism of the active ingredient. The CAS number for this substance is 319491-68-4. This impurity has been observed to have niche applications in research and development and analytical studies. It has also been found to be pharmacopoeia grade, which means it meets or exceeds purity standards set by regulatory authorities.</p>

<p>Benzo[b]thien-2-yl ketone (zileuton impurity) is a metabolite of the drug zileuton, which is used to treat asthma. Benzo[b]thien-2-yl ketone is formed by the oxidation of benzo[b]thiophene in the presence of cytochrome P450 enzyme system. It has been found to have anti-inflammatory properties and may be useful for treating asthma. This product is available as an analytical standard for HPLC, or as a custom synthesis for research and development.</p>

<p>Please enquire for more information about Clobetasol Propionate - Impurity D including the price, delivery time and more detailed product information at the technical inquiry form on this page</p>

<p>(2S,2R,Trans)-saxagliptin is an anti-diabetic drug that belongs to the thiazolidinedione class of drugs. It is a synthetic compound that is metabolized by cytochrome P450 enzymes and excreted in urine. (2S,2R,Trans)-saxagliptin has been shown to inhibit the synthesis of glucose in liver cells and to lower blood glucose levels in diabetic animals. In addition, it has been shown to have anti-inflammatory effects by inhibiting the production of TNF-α and IL-6 cytokines.</p>

<p>Oseltamivir is an antiviral drug that prevents the replication of influenza viruses in the body. It is a prodrug, which means it must be converted to its active form in vivo by hydrolysis. Oseltamivir is metabolized to oseltamivir acid by the enzyme amidase, which is found in the gastrointestinal tract. Oseltamivir acid inhibits the neuraminidase enzyme, which allows viral particles to attach to and invade cells. Oseltamivir acid has a low dosage, so it can be taken orally with or without food and does not require intravenous administration. This drug also has a low toxicity profile and can be given at low dosages for long periods of time without significant side effects such as kidney problems or bone marrow suppression.</p>

<p>Losartan is an angiotensin II receptor antagonist. It is used in the treatment of hypertension to reduce blood pressure and improve symptoms of heart failure. Losartan is used as a drug product and impurity standard for the pharmaceutical industry, specifically for its metabolite, losartan isomer impurity, potassium salt (CAS No. 860644-28-6). This compound is a white crystalline powder that can be custom synthesized or obtained from natural sources. High purity Losartan Isomer Impurity, Potassium Salt (CAS No. 860644-28-6) can be purchased from specialty suppliers such as Sigma Aldrich and Acros Organics.</p>

<p>Mikimopine is a kinase inhibitor that has shown promising results in the treatment of cancer. It works by inhibiting specific proteins involved in cancer cell growth and survival, leading to apoptosis (cell death) of tumor cells. Mikimopine is an analog of a naturally occurring protein found in human urine and Chinese medicinal herbs. It specifically targets cyclin-dependent kinases, which are enzymes that regulate cell division and proliferation. This drug has shown potent anticancer activity both in vitro and in vivo, making it a promising candidate for further development as an anticancer agent. Its selectivity towards cancer cells makes it a potentially effective therapy with minimal side effects compared to traditional chemotherapy treatments.</p>

<p>Acetylazide is an analog of a compound found in human urine that has shown promising anticancer activity. It is a potent inhibitor of protein kinases, which are enzymes involved in the regulation of cell growth and division. Acetylazide has been shown to induce apoptosis (cell death) in cancer cells, particularly those associated with thyroid cancer. This compound has also been tested in Chinese hamster ovary cells and has demonstrated a high degree of selectivity for tumor cells over normal cells. Acetylazide may be a promising candidate for the development of new anticancer drugs.</p>

<p>Imatinib is a kinase inhibitor that inhibits the kinase activity of tyrosine-protein phosphatase receptor (c-Abl) and platelet-derived growth factor receptor (PDGFR), which are both involved in tumor cell proliferation. Imatinib has been shown to be effective in treating leukemia and other types of cancer, as well as regulating the production of cytokines and protein tyrosine phosphatases. It is also being studied for use in Alzheimer's disease. Imatinib has selectivity for c-Abl over PDGFR, which makes it an attractive drug candidate for cancer therapy.</p>

<p>The major (R,S)-equol-d4 is a metabolite of the soy isoflavone daidzein. It is used as an impurity standard for HPLC analysis and as a research and development substance. The pharmacopoeia defines it as a drug product, while the FDA considers it to be an analytical standard. It has been shown to have anti-inflammatory properties in animal studies.</p>

<p>Dapagliflozin hydroxy impurity is an amorphous, solid oral pharmaceutical composition that is orally administered for the treatment of diabetes mellitus. Dapagliflozin hydroxy impurity is a stable formulation of dapagliflozin, which is a member of the class of drugs known as sodium-glucose cotransporter 2 inhibitors. Dapagliflozin hydroxy impurity has been shown to be effective in the treatment of type 2 diabetes mellitus, with a reduction in blood glucose levels.</p>

<p>N-[2-(2,4-Dichlorophenyl)-2-[(2,4-dichlorophenyl)methoxy]ethyl]-formamide is an analytical standard that is used for the determination of formamide in pharmaceutical formulations. N-[2-(2,4-Dichlorophenyl)-2-[(2,4-dichlorophenyl)methoxy]ethyl]-formamide is a synthetic compound and has a natural impurity which may be present at levels up to 10%. The CAS number for this compound is 911805-54-4. N-[2-(2,4-Dichlorophenyl)-2-[(2,4-dichlorophenyl)methoxy]ethyl]-formamide is an impurity standard for HPLC analysis. It has been synthesized and characterized by the United States Drug Enforcement Agency (DEA). It can be used as a reference substance in pharmacopoeia standards.</p>

<p>Please enquire for more information about 4'-Bromo-2-(diethylamino)-2',6'-acetoxylidide including the price, delivery time and more detailed product information at the technical inquiry form on this page</p>

<p>Δ2-Cefuroxime is a prodrug that is hydrolyzed in vivo to cefuroxime, its active form. It has a high rate of hydrolysis, which can be increased by buffers, and it is commonly used as an intravenous or intramuscular injection. Δ2-Cefuroxime has two isomeric forms: the cis-isomer and trans-isomer. The cis-isomer has a higher rate of hydrolysis than the trans-isomer, but both forms have equal antibacterial activity. In addition, Δ2-cefuroxime can be converted into erythromycin.</p>

<p>O-Acetyl silodosin is a synthetic, natural metabolite of silodosin. It is a nicotinic acid derivate that inhibits the activity of phosphodiesterase type 5 (PDE5) and has been used as a research and development standard for PDE5 inhibitors. O-Acetyl silodosin is an impurity in the commercial drug product, Silodosin®.</p>

<p>Surfactin is a cyclic lipopeptide that has been found in urine and has shown potential as an anticancer agent. It has been shown to inhibit kinases, including indirubin and Chinese hamster ovary cell tumor kinase, which are involved in cancer cell proliferation. Surfactin analogs have also been developed as inhibitors of cancer cell growth and inducers of apoptosis. In addition to its anticancer properties, surfactin has been found to have antimicrobial activity against a variety of bacteria, including Clostridium perfringens. Overall, surfactin shows promise as a multifunctional therapeutic agent with potential applications in both cancer treatment and microbial control.</p>

<p>4-Hydroxy-N-2-pyridinyl-2H-1,2-benzothiazine-3-carboxamide-1,1dioxide is a drug product that is used as an analytical reference material. It is a white to pale yellow powder that is soluble in water and has a molecular weight of 343.4 g/mol. The compound has been used for the development of drugs with therapeutic potential against cancer, diabetes, and other diseases. The following are some of the impurities that may be found in 4-hydroxy-N-2-pyridinyl-2H--1,2--benzothiazine--3--carboxamide--1,1dioxide: CAS No.: 65897 - 46 - 3 Molecular weight: 343.4 g/mol Melting point: Boiling point: Density: 1.7 g/cm</p>

<p>9-Desfluoro-9(11)-epoxy triamcinolone acetonide is a synthetic metabolite of the natural drug product 9-desfluoro-9(11)-epoxy triamcinolone acetonide. It is a white to yellowish crystalline powder that is soluble in acetone, ethanol, and chloroform. It has been used as an analytical standard for HPLC and GC analysis. The purity of 9-desfluoro-9(11)-epoxy triamcinolone acetonide should be greater than 98% with less than 0.1% impurities determined by NMR spectroscopy or by high performance liquid chromatography (HPLC).</p>

<p>Clomiphene is a drug that is used to treat female infertility. It binds to estrogen receptors and blocks the natural production of estrogen, which is necessary for ovulation. Clomiphene has been shown to have toxicological effects on human serum, including the induction of metabolic disorders such as hyperlipidemia and hyperglycemia. It also has an adverse effect on the matrix effect in vitro, which may be due to its ability to inhibit enzymes involved in citrate metabolism. Clomiphene has been shown to increase the risk of developing type 2 diabetes mellitus in women with pre-diabetes or gestational diabetes mellitus, although this risk was reduced by the use of metformin. Trans-clomiphene is a synthetic form of clomiphene that may have fewer side effects.</p>

<p>4-Methylbenzylidene camphor-d4 is an analytical reference standard. It is used as a high purity drug development API impurity, HPLC standard, and CAS No. 1219806-41-3. 4-Methylbenzylidene camphor-d4 is also used in the manufacture of niche drug products that require Impurity standards and Metabolites.</p>

<p>Zk 93423 hydrochloride is a drug product that is used as an analytical standard for HPLC. It belongs to the class of natural products and has been shown to be effective against gram-positive bacteria, such as methicillin-resistant Staphylococcus aureus (MRSA). Zk 93423 hydrochloride is not active against acid-fast bacteria, such as Mycobacterium tuberculosis or Mycobacterium avium complex. Zk 93423 hydrochloride has been shown to inhibit bacterial protein synthesis by binding to the ribosomal 50S subunit, inhibiting its function. This may be due to its ability to induce apoptosis in respiratory system cells. This drug product has also been shown to have anti-inflammatory properties due to its inhibition of prostaglandin synthesis.</p>

<p>Please enquire for more information about O4-Desmethyl O3-desethyl apremilast including the price, delivery time and more detailed product information at the technical inquiry form on this page</p>

<p>Please enquire for more information about 4-Acetyl-3,4-dihydro-2H-pyrido[3,2-b]oxazine including the price, delivery time and more detailed product information at the technical inquiry form on this page</p>

<p>K-(D-1-Nal)-fwll-NH2 is a drug product that is custom synthesized to order. It has been shown to have high purity, analytical and metabolic studies. The metabolite of K-(D-1-Nal)-fwll-NH2 is D-1-nal. This product has been shown to be used in the development of drugs for niche markets and as an impurity standard for HPLC analysis. K-(D-1-Nal)-fwll-NH2 is also a synthetic drug that belongs to the class of naphthyridines. It has a CAS number of 1394288-22-2 and an impurity standard that can be used for research and development purposes.</p>

<p>Tetramethylrhodamine cadaverine is a medicinal compound that has shown promising results in the treatment of cancer. This Chinese analog has been found to induce apoptosis, or programmed cell death, in cancer cells by inhibiting kinase activity. It also acts as an inhibitor of nalbuphine, a protein involved in tumor growth and progression. Tetramethylrhodamine cadaverine has been studied extensively for its anticancer properties and has shown efficacy against various types of human cancers. Additionally, this compound can be detected in urine samples and serves as a useful biomarker for cancer diagnosis and monitoring. With its potent properties as an anticancer agent, tetramethylrhodamine cadaverine holds great promise for the development of novel cancer therapies.</p>

<p>Misoprostol Impurity 13 is a mixture of diastereomers from the synthesis of misoprostol. This material is not found in nature, and is not an impurity in any drug product. It has been synthesized for research purposes, to study the metabolism of misoprostol. The material is an analytical standard for HPLC, and can be used as a reference material for pharmacopoeia or drug development studies. Misoprostol Impurity 13 can also be used as a synthetic impurity standard for analytical HPLC.</p>

<p>Irinotecan is a drug product that is used in the treatment of cancer. It is a prodrug that must be activated by metabolism to its active form, SN-38. Irinotecan lactone impurity is an impurity standard and has been shown to have analgesic properties in mice. It has also been shown to inhibit the growth of colon cancer cells.</p>

<p>Loxoprofen Related Compound 2 is a mixture of diastereomers that is an impurity in the drug product, Loxoprofen. Loxoprofen Related Compound 2 is a metabolite of loxoprofen and its concentration in blood plasma after administration of loxoprofen can be used as an indicator for pharmacokinetics. The compound has been shown to inhibit the activity of bacterial dna gyrase and topoisomerase IV, which are enzymes that maintain the integrity of bacterial DNA. Loxoprofen Related Compound 2 was found to be less active than loxoprofen against MRSA and Clostridium perfringens, although it was more active than loxoprofen against Mycobacterium tuberculosis, Mycobacterium avium complex, and methicillin-resistant Staphylococcus aureus (MRSA).</p>

<p>Hydrocortisone EP Impurity H is an analytical standard that is used as an impurity in the production of hydrocortisone. It has been shown to have a purity level of 99.5% and can be used as a reference standard for HPLC analysis. Hydrocortisone EP Impurity H can also be used as a reference standard for drug product development, API impurities, and drug metabolite identification.</p>

<p>Tamsulosin sulfonic acid is a drug product that belongs to the class of synthetic drugs and is used for the treatment of urinary tract disorders. It has an analytical purity greater than 99% and is metabolized in the body to produce a metabolite. Tamsulosin sulfonic acid was originally developed as a lead compound for the treatment of BPH, but was never approved. Tamsulosin sulfonic acid is also known as a niche drug because it has limited application in comparison to other drugs.</p>

<p>1-Benzyl-4-phenylpiperidine-4-carboxylic acid (1BPPC) is a soluble guanylate cyclase activator that is used as a research tool. It was shown to activate the soluble guanylate cyclase, which generates cyclic GMP from GTP. The activation of this enzyme leads to an increase in intracellular cGMP levels, which triggers the relaxation of smooth muscle cells and improves erectile function. 1BPPC has also been shown to enhance the sensitivity of the rat prostate gland to testosterone. This effect may be due to the inhibition of phosphodiesterase type 5 (PDE5), which degrades cGMP.</p>

<p>Disodium monooctyl sulfosuccinate (DSMS) is a sodium-based surfactant that is used as an excipient in tablets and capsules. DSMS can be used to treat infectious diseases, such as cholera, dysentery, and typhoid fever. It has been shown to be effective in treating these types of infections due to its long-term efficacy and low potency. The most common side effects of DSMS are mild skin irritation or an allergic reaction. This drug does not have any known contraindications with other drugs or foods. It is also biocompatible with a variety of polymers and fatty acids.</p>

<p>Promurit is an anticancer drug that has shown promising results in the treatment of various types of cancer. It has been tested on human cancer cell lines and has been found to induce apoptosis, or programmed cell death, in these cells. Promurit works by inhibiting kinases, which are enzymes that play a key role in regulating cell growth and division. By blocking these enzymes, Promurit prevents cancer cells from growing and spreading. This drug is derived from Chinese medicine and contains natural compounds that have been shown to have potent anti-cancer activity. In addition to its anti-tumor effects, Promurit also has medicinal properties that may help to alleviate symptoms associated with cancer and improve overall quality of life for patients undergoing treatment.</p>

<p>O-Desmethyl urapidil is an impurity of the drug product, urapidil. It is a synthetic compound that is not found in nature. This compound has been used as an analytical reference standard for HPLC and as a metabolite in metabolism studies.</p>