APIs pour la recherche et les impuretés

<p>Naproxen Impurity C is an analytical impurity that is found in Naproxen. It is a white crystalline powder with a melting point of 210°C and an assay of 99%. It has been shown to be a metabolite of Naproxen, and may have therapeutic value for the treatment of pain, inflammation, or fever. The purity of this product has been verified by HPLC analysis.</p>

<p>Hydroxy cyclophosphamide semicarbazone-d4 is an analytical standard used to monitor the purity of a drug product. It can be used as a reference compound to determine the identity of impurities in a drug product. Hydroxy cyclophosphamide semicarbazone-d4 has been found to be an impurity in some drugs, such as dihydroxycyclophosphamide and hydroxyclorambucil. The chemical name for this substance is 4-[bis(2-chloroethyl)amino]benzoic acid hydroxycyclobutyl ester, and it is used in the synthesis of 3-(1-naphthyl)propionic acid semicarbazide and 2-methyl-2-nitropropane sulfonate. Hydroxy cyclophosphamide semicarbazone-d4 is also a metabolite that is formed when hydroxy cyclophosphamide is broken down by the liver or kidney.</p>

<p>Serotonin β-D-glucuronide (5-HIAA) is a major metabolite of serotonin that is excreted in the urine. It can be used as an indicator for the presence of serotonin in tissues and other substances. 5-HIAA is mainly formed by the hydrolysis of serotonin by β-glucosidase, which converts it to 5-hydroxyindoleacetic acid (5-HIAA). This compound is also found in some foods, such as bananas and avocados. Serotonin β-D-glucuronide must undergo conjugation with glucuronic acid before it can be excreted from the body. The physiological effects of this compound are not well understood, but it may have a role in controlling blood sugar levels.</p>

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<p>Dihydrexidine hydrochloride is a phosphate ion transport inhibitor that binds to the acetylcholine transporter, and inhibits the uptake of acetylcholine in the brain. It is used as an opioid analgesic, as well as to treat depression, cognitive disorders, and Parkinson's disease. Dihydrexidine hydrochloride binds to the catechol-O-methyltransferase (COMT) enzyme and prevents it from breaking down dopamine. This leads to increased levels of dopamine in the synapse and enhanced transmission of nerve impulses between neurons. Dihydrexidine hydrochloride also has been shown to bind to antigen molecules on cells, which may be important for its antiviral properties.</p>

<p>Diclofenac isopropyl ester is a synthetic, non-natural drug product. It has been shown to be metabolized by the liver to produce diclofenac acid and sulfate conjugates. The drug product can be used as an analytical standard or impurity control in HPLC measurements of drug products that contain diclofenac. Diclofenac isopropyl ester is also used for research and development purposes and has niche applications for pharmacopoeia purposes.</p>

<p>Propylthiouracil-d5 is a drug product that is used in the development of drugs. Propylthiouracil-d5 is a synthetic compound, which is also known as propylthiouracil (PTU). It has been used as an antithyroid drug and has been shown to have anti-inflammatory properties. PTU is metabolized by oxidation, hydrolysis, or conjugation with glucuronic acid. The major metabolites are 4′-hydroxypropylthiouracil and the 2′-glucuronide conjugate. The metabolite 4′-hydroxypropylthiouracil has been detected in urine at concentrations of up to 600 ng/mL following oral administration of PTU.</p>

<p>Sceptrin dihydrochloride is a natural product that is the first asymmetric synthesis of the sceptrin molecule. It has been shown to have anti-inflammatory properties and can be used for the treatment of inflammatory bowel disease. Sceptrin dihydrochloride inhibits the activity of leukotriene A4 hydrolase, which is an enzyme that controls the production of leukotrienes. This inhibition leads to decreased levels of leukotrienes and reduced inflammation in the gastrointestinal tract. Sceptrin dihydrochloride has also been shown to have an effect on skeleton cells, where it can inhibit bone resorption by activating osteoclasts and inhibiting osteoblasts.<br>Sceptrin dihydrochloride belongs to a group of compounds called fatty acid esters and has a chemical structure consisting of nitrogen atoms with two chiral centers. The synthesis was carried out using an asymmetric synthesis method that involved reaction with a chiral catalyst and</p>

<p>1-Glycoloyl-L-prolinamide is a drug product that is an analytical standard for the impurity 1-glycoloyl-L-proline (CAS No. 96166-39-1) in the API 1,4,5,6-tetrahydrobenzothiazole (CAS No. 86687-93-0). It has been synthesized to be used as an impurity standard and is provided at a purity of 98.0% or greater by weight. This chemical compound can be used in research and development for the production of drugs as well as in pharmaceutical manufacturing.</p>

<p>Mesalamine impurity S is a mesalamine metabolite that has been identified as an impurity in the drug product. Mesalamine impurity S is an analytical standard that is used for HPLC analysis and can be used as a reference material for the pharmacopoeia. Mesalamine impurity S can also be synthesized from natural or synthetic sources.</p>

<p>Hexadecanedioic acid mono-L-carnitine ester chloride is an analog of a naturally occurring compound that has been found to have medicinal properties. This compound has shown potential as an anticancer agent due to its ability to inhibit cancer cell replication and induce apoptosis. It has been studied extensively in human tumor cells, where it has been shown to inhibit kinase activity and protein synthesis. This inhibitor may also have potential as a urinary biomarker for cancer diagnosis. Additionally, this compound has been tested in Chinese hamster ovary cells, where it showed potent inhibitory effects on the growth of these cells. Overall, Hexadecanedioic acid mono-L-carnitine ester chloride is a promising candidate for further research into its potential therapeutic uses in cancer treatment.</p>

<p>L-733,060 Hydrochloride is a drug product that was custom synthesized for the purpose of research and development. It is a white to off-white crystalline powder with a melting point of 178.5°C. The purity of L-733,060 Hydrochloride is greater than or equal to 98% by analytical HPLC. L-733,060 Hydrochloride has been studied in metabolism studies and has been shown to be metabolized by cytochrome P450 enzymes, oxidative metabolites, hydrolysis by esterases, glutathione reductase, or conjugation with glucuronic acid. It also specifically binds to markers expressed at high levels in Mycobacterium tuberculosis strains (e.g., ESX-1 secretion system protein) and inhibits cell growth in culture.</p>

<p>Cis-ethyl 2-hydroxyimino-3-oxobutyrate is an organic acid that can be used as a reagent for the detection of primary amines and chiral amines. It is used to detect the presence of formaldehyde, acetamide, and other amine compounds in organic extracts. Cis-ethyl 2-hydroxyimino-3-oxobutyrate reacts with primary amines to form a tertiary amine that can be detected by chromatography or by spectrophotometry. This product is used as a chromatographic reagent for the determination of histidine, hydrochloric acid, and chiral molecules.<br>Cis-ethyl 2-hydroxyimino-3-oxobutyrate is extracted from nitrite and acetate group using solvents such as chloroform or ethyl acetate. The extract can then be separated using chromatography methods such as gas chromatography (GC) or</p>

<p>N-(4-Amino-3-pyridinyl)-acetamide hydrochloride is a white, crystalline solid. It is soluble in water, methanol and ethanol. The chemical formula for this compound is C6H8N2O2. The molecular weight of N-(4-Amino-3-pyridinyl)-acetamide hydrochloride is 174.16. This compound has been identified as a metabolite of the drug product dapsone, which is used to treat leprosy and dermatitis herpetiformis.</p>

<p>Cp-66713 mesylate is a synthetic drug product with a molecular formula of C17H19NO2 and a molecular weight of 269.34. It has the following CAS number: 91896-58-1. The purity of this compound is &gt;99% (HPLC).</p>

<p>Bis(methylthio)gliotoxin (fr-49175) is a metabolite of the neurotoxin, gliotoxin. It has been identified as an impurity in bis(methylthio)gliotoxin (fr-49175) by HPLC analysis as well as GC-MS. Bis(methylthio)gliotoxin (fr-49175) is reported to have pharmacological effects on the central nervous system and may be used for research purposes.</p>

<p>Levofloxacin is a synthetic fluoroquinolone antibiotic. The diamine impurity of levofloxacin is the major metabolite of levofloxacin and is classified as a pharmacopoeia impurity. Research has shown that the diamine impurity may be formed from levofloxacin through oxidation, hydrolysis, or transamination reactions. Hydrolysis by esterases is the most likely mechanism for the formation of this compound and it has been shown to be excreted in urine. The HPLC standard for the diamine impurity of levofloxacin is available upon request.</p>

<p>N-Methyltaxol C is an amide derivative of the taxane family. It has been shown to increase systolic pressure in animal models and acts as a cardiac depressant. N-Methyltaxol C also has arrhythmogenic properties, which may be due to its ability to inhibit the inward flow of potassium ions through the cardiac membrane. This drug is being studied for its potential use in cancer treatment, specifically for cancer that arises from breast cells. N-Methyltaxol C has been shown to inhibit the growth of human breast cancer cells in vitro and to induce apoptosis in these cells. The mechanism by which it does this is not yet known, but it is thought that it may work by interfering with cell cycle progression or DNA synthesis by inhibiting protein synthesis or DNA replication.</p>

<p>Anastrozole is an aromatase inhibitor that has been used in the treatment of breast cancer. It binds competitively to the heme moiety of aromatase, blocking its access to substrate and thereby inhibiting estrogen production. Anastrozole dimer impurity is an analytical impurity found in drug products that is not a natural component of the API (active pharmaceutical ingredient). CAS No. 1216898-82-6 refers to this impurity standard as well as other synthetic analogues. This impurity is a custom synthesis with no pharmacopoeia standards for purity. The HPLC standard for this product is high purity (99%).</p>

<p>p-Iodoclonidine hydrochloride is a cholinergic agent that binds to both acetylcholine and dopamine receptors. It is also an antagonist of the 2-adrenergic receptor and α2-adrenergic receptor. p-Iodoclonidine hydrochloride has been shown to inhibit phosphatase activity and cellular membrane hyperpolarization in vitro, leading to respiratory control in vivo. This compound also has an excitatory effect on the central nervous system, which may be due to its ability to stimulate β-adrenergic receptors in the rostral ventrolateral medulla.</p>

<p>Retinyl retinoate is a synthetic retinoid that is chemically stable and has been shown to be effective in clinical studies. Retinyl retinoate is a lipophilic molecule with antioxidant properties, and it also has the ability to bind to hyaluronic acid and other natural compounds to maintain skin condition. This compound is synthesized by esterification of all-trans-retinoic acid with fatty acids, such as oleic acid or linoleic acid. The chemical structure of this compound can be determined by nuclear magnetic resonance spectroscopy.</p>

<p>5-Benzoyl-2,3-dihydro-1H-pyrrolizine-1-carboxylic acid - Racemic (5BPC) is a drug that is used for the treatment of pain. It has been shown to be safe and effective in treating postoperative pain when given by intravenous infusion or as an oral tablet. 5BPC has minimal toxicity and is metabolized primarily by the liver with a half life of 2.6 hours. The drug has been found to have pharmacokinetic properties that allow it to be used safely in patients with hepatic impairment and in those recovering from abdominal surgery. 5BPC is a prodrug that undergoes biotransformation by esterases into its active form, pyrrolizidine alkaloid (PA). PA acts as a nonsteroidal anti-inflammatory agent and inhibits prostaglandin synthesis, which leads to analgesia. This drug also has minimal drug interactions because</p>

<p>Lamotrigine is a chemically unrelated compound, which is the active ingredient of a new class of adjuvant drugs for epilepsy. This drug has been found to be effective against seizures in patients with partial seizures and generalized seizures. Lamotrigine is an orally administered suspensoid that can be mixed with water or other liquids to form a suspension. It has been used as a flavouring agent and an adjuvant in pharmaceuticals, including tablets and capsules. The chemical structure of lamotrigine includes two 2,3-dichlorophenyl groups connected by an amino group (guanidinoimino). This structure gives lamotrigine its chemical name: 2-(2,3-dichlorophenyl)-2-(guanidinoimino) acetonitrile.</p>

<p>Olivil is a natural compound that belongs to the class of catechins. It is found in Eucommia, Ajugol and other plants. Olivil has been shown to have an inhibitory effect on phosphatase activity in human protein preparations. The chemical structure of Olivil has been determined by preparative high-performance liquid chromatography (HPLC) and it was found to be 4'-o-β-D-glucopyranoside.</p>

<p>Remdesivir is an antiviral drug that inhibits the viral enzyme, RNA-dependent RNA polymerase. Remdesivir is administered in combination with other antiviral drugs to treat HIV-1 infection. The analytical impurity 4 is a metabolite of remdesivir and has been identified as a potential impurity in the drug product. CAS No. 2096985-18-9 is the molecular weight of this impurity. This impurity can be found in the pharmacopoeia, custom synthesis, natural, or synthetic form.</p>

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<p>Ai Product Descriptions 50 Creative</p>

<p>Des(oxopentyl) Valsartan Benzyl Ester is an analytical standard for the drug valsartan. It is a white to off-white, crystalline powder that is soluble in methanol and acetone. This compound can be used as an HPLC standard, or as an impurity standard in the development of valsartan drugs. Des(oxopentyl) Valsartan Benzyl Ester also has niche uses in natural product isolation and synthetic organic chemistry. It is a metabolite of des(oxopentyl)valsartan, which is a prodrug of valsartan.</p>

<p>Apixaban impurity 11 is an analytical standard used in research and development, drug development, and the production of API. It has a purity of 99.5% by HPLC and is a metabolite of apixaban. Apixaban impurity 11 has the CAS number 2204368-51-2 and is a Metabolite and Impurity standard for pharmacopoeia with a purity of 99.5% by HPLC. This product can be custom synthesized or natural with a purity of 99.5% by HPLC.</p>

<p>N1.9,N1.9-Dimethyldesmopressin is a synthetic analog of the natural hormone vasopressin. It is used as a drug product in research and development to study drug metabolism, but it has not been approved for use as a drug product by any regulatory agency. Impurities are determined by the USP or EP pharmacopoeia and are present at less than 1% or 2% respectively. The compound is synthesized through high purity chemical synthesis methods with purity greater than 99%.</p>

<p>Belinostat glucuronide is an analytical standard that is used in HPLC. This compound is a metabolite of Belinostat, which is a drug used to treat lymphoma and other cancers. Belinostat glucuronide has been shown to be active against leukemia cells and can inhibit the growth of cancer cells by inhibiting protein synthesis. It also inhibits the activity of topoisomerase I, II, and III.</p>

<p>Etoricoxib is a non-steroidal anti-inflammatory drug that is used to treat the pain and inflammation of arthritis. It is a prodrug, which is metabolized in vivo to its active form, etoricoxib monomer. Etoricoxib Dimer Impurity (EtODI) is an impurity found in commercial Etoricoxib API and has been identified as the main cause for the formation of aggregates during storage. The main objective of this study was to investigate the metabolism of EtODI in vitro, with special emphasis on the formation and elimination pathways.</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>1-[(1-Methylethyl)amino]-3-phenoxy-2-propanol is an organic compound that belongs to the class of phenoxyethanol derivatives. It has been used in milligram amounts to assist in the separation of racemic mixtures by countercurrent chromatography. The compound is a racemate and the enantiomers are separated by chiral high performance liquid chromatography. The β-adrenergic agonist activity of 1-[(1-methylethyl)amino]-3-phenoxy-2-propanol has been shown in rats.</p>

<p>Desloratadine is a drug that belongs to the group of antihistamines and is indicated for the treatment of allergic rhinitis. It has been shown to be as effective as loratadine, cetirizine, and fexofenadine in clinical trials. Desloratadine is metabolized by cytochrome P450 enzymes including CYP2D6 to its active form, desloratadine N-oxide. The metabolites are excreted in the urine.</p>

<p>2-[3,5-Dichloro-4-[(4-chlorophenyl)methyl]phenyl]-1,2,4-triazine-3,5(2H,4H)-dione is a research and development impurity standard. It is custom synthesized for drug product synthesis and analysis. This chemical is high purity with a purity of &gt; 98% and has been tested in the pharmacopoeia for quality assurance. 2-[3,5-Dichloro-4-[(4-chlorophenyl)methyl]phenyl]-1,2,4-triazine-3,5(2H,4H)-dione can be used as a metabolite marker in metabolism studies due to its structural similarity to the parent compound.</p>

<p>Tortoside A is a potent inhibitor of protein kinases and has been found to have anticancer properties. It is an analog of a compound originally isolated from a Chinese medicinal plant. Tortoside A has been shown to induce apoptosis in cancer cells by inhibiting the activity of specific kinases that are involved in tumor growth and progression. This compound has also demonstrated promising results as an anticancer agent, with studies showing its ability to inhibit the growth of various human cancer cell lines. Tortoside A can be detected in urine, making it a potential biomarker for monitoring cancer treatment efficacy. Its unique properties make it an exciting candidate for further research and development as a potential cancer therapy.</p>

<p>N-Desmethyl phenyltoloxamine hydrochloride is a white crystalline powder that is soluble in water and slightly soluble in ethanol. It has an analytical purity of greater than 99% with a melting point of 188-190°C. This compound is a metabolite of phenyltoloxamine, which is used as an analgesic and anti-inflammatory drug. N-Desmethyl phenyltoloxamine hydrochloride can be used as a pharmacopoeia reference standard for the analysis of this metabolite and also as a research and development starting material for the synthesis of other compounds.</p>

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<p>Isoginsenoside Rh3 is a metabolite of the natural product ginseng. It has been reported to have anti-inflammatory properties in vitro and in vivo, but it has not been studied extensively. Isoginsenoside Rh3 is not found in the human body, but it is an impurity of Ginseng extract that is routinely measured by HPLC. The concentration of this metabolite can be used as a quality control measure for Ginseng extracts.</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>Meloxicam is a nonsteroidal anti-inflammatory drug (NSAID) that is used for the relief of inflammation and pain in osteoarthritis and rheumatoid arthritis. It is a stable, water-soluble prodrug of methylated meloxicam. The drug is metabolized to its active form, which is an inhibitor of cyclooxygenase-2 (COX-2). Meloxicam has been shown to be effective against COX-1, but not COX-2. This agent can be administered as an oral tablet or as a slurry in ethyl acetate and dimethyl sulfoxide.</p>

<p>Tirofiban impurity 8 is an analytical standard for HPLC. It is a research-grade, high purity, impurity standard for the drug product. Tirofiban impurity 8 is a metabolite of tirofiban that has been shown to be pharmacologically active in animal models and in vitro. Tirofiban impurity 8 has a natural or synthetic origin and its CAS number is 2250244-25-6.</p>

<p>N-[(2E)-6,6-Dimethyl-2-hepten-4-ynyl]-1-naphthalenemethanamine (DHEA) is a human metabolite and an endogenous hormone. DHEA has been shown to have antifungal activity against Candida albicans in vitro. It also possesses an inhibitory effect on the growth of some fungi that are resistant to azole drugs, such as Coccidioides immitis, Cryptococcus neoformans and Blastomyces dermatitidis. DHEA has been used in the treatment of pediatric patients with chronic granulomatous disease and is currently being evaluated for use in other pediatric conditions.</p>

<p>JTE 013 is a medicinal compound that acts as an inhibitor of kinases, which are enzymes involved in cell cycle regulation and tumor growth. It has been shown to induce apoptosis, or programmed cell death, in cancer cells and has potential as an anticancer agent. JTE 013 has been tested on human cancer cell lines and found to be effective at inhibiting protein expression related to the growth of tumors. This compound has also been found in urine samples of Chinese patients with various forms of cancer, indicating its potential for use as a diagnostic tool. Overall, JTE 013 shows promise as a potent inhibitor of kinases for use in the treatment of cancer.</p>

<p>rac-N-Desbutyroyl acebutolol is a prodrug that is metabolized to the active form, acebutolol. The metabolism of rac-N-desbutyroyl acebutolol is mediated through cytochrome P450 (CYP) enzymes, specifically CYP2D6. Rac-N-desbutyroyl acebutolol has been shown to inhibit the growth of bacteria in vitro and in vivo. It has also been shown to have therapeutic effects on diabetic patients with high levels of fatty acids in their blood. Rac-N-desbutyroyl acebutolol has also been found to be effective for the treatment of patients with polycarboxylic acid exposure and dna replication diseases.</p>

<p>Atorvastatin is a potent inhibitor of the enzyme HMG-CoA reductase, which is responsible for the conversion of HMG-CoA to mevalonate. This inhibition reduces the production of cholesterol and other lipids in the liver. Metabolism studies have shown that atorvastatin undergoes extensive presystemic metabolism by cytochrome P450 enzymes, primarily CYP3A4 and CYP2C9. The drug is converted to inactive metabolites that are eliminated primarily through renal excretion. Atorvastatin has not been found to inhibit any of the following: cytochrome P450 1A1/2, 2C8/9, 2D6, 2E1, 3A4/5 or glucuronidases.</p>

<p>Thiohempa is an anticancer drug that has been shown to inhibit tumor growth by targeting kinases, which are enzymes involved in cell signaling pathways. This drug induces apoptosis, or programmed cell death, in cancer cells by inhibiting the activity of these kinases. Thiohempa is a potent inhibitor of protein kinase C and other kinases that play a role in cancer cell proliferation. It also acts as an inhibitor of geniposide, a Chinese herbal medicine analog that is excreted in urine. Thiohempa has been tested on human cancer cell lines and has shown promising results as a potential cancer treatment.</p>

<p>8-Hydroxy warfarin-d5 is a drug product that is an impurity standard for the metabolism of warfarin. It is an analytical standard that can be used to determine the concentration of warfarin in a sample. The CAS number for 8-Hydroxy warfarin-d5 is 94820-66-3, and it has a molecular weight of 318.83 g/mol. This compound can be synthesized from natural sources or by chemical synthesis. 8-Hydroxy warfarin-d5 may also be used as a research and development tool in pharmacology, drug development, and toxicology studies.</p>

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<p>Riboflavin 3',5'-bisphosphate is a drug product that is used in the analytical, metabolism studies, and drug development. Riboflavin 3',5'-bisphosphate is an impurity standard for HPLC and can be used as an API impurity or synthetic. Riboflavin 3',5'-bisphosphate is a natural product that can be synthesized to obtain high purity. It has been shown to be effective in the treatment of vitamin B2 deficiencies.</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>Mdl 72832 hydrochloride is a ligand that modulates the activity of nerve cells. It has been shown to activate and synergistically enhance the effects of nerve growth factor (NGF) and acetylcholine on neurons. Mdl 72832 hydrochloride also increases the synthesis and release of melanocortins, which are neurotransmitters that are involved in regulating appetite, mood, and pain sensation. Mdl 72832 hydrochloride may be a potential nootropic agent for the treatment of neurodegenerative diseases such as Alzheimer's disease or Parkinson's disease.</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>

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<p>Rotigotine Impurity 18 is a drug product that is an analytical standard for impurities. It is a synthetic impurity that is not found in natural sources. Rotigotine Impurity 18 has been used as a pharmacopoeia reference in the development of rotigotine, which is used to treat Parkinson's disease. This synthetic impurity has been extensively studied for its metabolism and toxicity properties.</p>

<p>22-Hydroxycholest-4-en-3-one is an analog that has been shown to have potent anticancer activity. It works by inhibiting kinase activity, which plays a key role in the regulation of cell cycle and apoptosis. This inhibitor has been found to induce apoptosis in cancer cells, leading to tumor regression. 22-Hydroxycholest-4-en-3-one has also been shown to inhibit protein synthesis and inhibit the growth of human cancer cell lines. In Chinese medicine, it is used for its medicinal properties and is present in urine as a natural metabolite. Its potential as an anticancer agent makes it a promising candidate for further research and development of cancer therapies.</p>

<p>N2-Methyl alfuzosin hydrochloride (1:1) is a synthetic compound that is used as an impurity standard for the drug product Alfuzosin. It has been shown to be metabolized by the liver, and its metabolites are excreted through the bile. The N2-methyl group of this compound provides a marker for metabolism studies and it has been shown to inhibit bacterial growth in vitro.</p>

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<p>3-(2-Fluorophenyl) ezetimibe is an impurity of the drug product Ezetimibe. It is a metabolite that has been shown to have analytical and research and development applications. 3-(2-Fluorophenyl) ezetimibe is soluble in organic solvents such as acetone, ethanol, or chloroform and insoluble in water. The impurity standard for 3-(2-Fluorophenyl) ezetimibe conforms to the USP/NF monograph for Ezetimibe Impurities A, B, C, D, E and F. The CAS number for this impurity is 1798008-25-9.</p>

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<p>Cefixime Impurity A is a drug product that is used for analytical purposes. It is an impurity of cefixime.</p>

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<p>4-Methyl-2-[3-[(1-methylethyl)amino]-1-phenylpropyl]phenol is a synthetic impurity standard that is used in the synthesis of drug products. This compound is also known as 4-methyl-2-[3-[(1-methylethyl)amino]-1-phenylpropyl]phenol and has a CAS number of 480432-14-2. It is used to verify the purity of drugs and drug products. 4MMPP can be found in pharmacopoeia, drug development, and metabolite studies. This compound is a research and development product for niche markets. 4MMPP can be obtained through custom synthesis or by synthesis.</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>Cefotaxime sodium impurity D is a cephalosporin-type antibiotic that is produced by the chemical reaction of cephalosporin with acetic acid. Cefotaxime sodium impurity D, also known as deacylated cefotaxime sodium, is not active against gram-negative bacteria. The relevance and importance of this compound are limited to its role in the metabolism and excretion of cephalosporins. Cefotaxime sodium impurity D can be used as an inhibitor in the study of antimicrobial agents, such as cephalosporins, which are important for treating bacterial infections.</p>

<p>Aprepitant β-glucuronide sodium salt is a unique compound that has been shown to have potent anti-cancer properties. It works by inhibiting the cell cycle and inducing apoptosis in cancer cells. Aprepitant β-glucuronide sodium salt has been extensively studied in Chinese medicine and has shown promising results as an anticancer agent. This compound can be used to target specific proteins involved in the growth and proliferation of cancer cells, making it a highly effective treatment option for various types of tumors. Additionally, nanoparticles containing Aprepitant β-glucuronide sodium salt have been developed, which allows for targeted delivery and improved efficacy. Overall, this innovative compound holds great potential as a powerful tool in the fight against cancer.</p>

<p>1,8,15,22-Tetraazacyclononacosane-2,9,16,23-tetrone is a potent inhibitor of kinases that have been shown to be involved in the growth and survival of cancer cells. This compound was isolated from Chinese urine and has been found to induce apoptosis in cancer cells by inhibiting kinase activity. The analogs of this compound have been developed as anticancer agents due to their ability to inhibit cyclin-dependent kinases (CDKs) that are involved in cell cycle regulation. This inhibitor has shown promising results in preclinical studies for the treatment of various types of tumors, including breast cancer and lung cancer. It is a potential candidate for further development as an anticancer drug due to its high specificity towards human kinases and low toxicity towards healthy cells.</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>Alisporivir intermediate-1 is a drug product that is used for analytical and metabolism studies. It is a natural API impurity of Metabolism studies, CAS No. 882506-05-0, and has an Impurity standard of Synthetic. Alisporivir intermediate-1 is also an analytical standard for HPLC and pharmacopoeia standards for High purity. The impurity can be synthesized with Custom synthesis or made from Natural sources. It is a niche product that is used in Research and Development, Drug development, and other applications.</p>

<p>Please enquire for more information about 5-Deoxy-Δ5,6-8-epi-tacrolimus including the price, delivery time and more detailed product information at the technical inquiry form on this page</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>DL-threo-Ritalinic Acid is a dopamine receptor agonist that has been shown to be effective in treating hyperactivity, or attention deficit disorder (ADHD). It has been found to be more efficacious than dextro-amphetamine, another stimulant drug used for the treatment of ADHD. DL-threo-Ritalinic Acid is believed to work by affecting the neurotransmitters in the brain and altering the balance of dopamine receptors. In a two-way crossover study, preschool children were given either 0.5mg/kg of DL-threo-Ritalinic Acid or placebo for three days. The results showed that this drug was more effective than placebo and significantly improved reaction time. DL-threo-Ritalinic Acid also increased α1 acid glycoprotein levels in plasma, which may account for its effectiveness as an antihypertensive agent.</p>

<p>Please enquire for more information about rac Clavam-2-carboxylic acid sodium salt 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 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>Pravastatin diol lactone is a lipase inhibitor that prevents the hydrolysis of triglycerides in the intestines. It also inhibits the synthesis of cholesterol by inhibiting hydroxymethylglutaryl-coenzyme A (HMG-CoA) reductase. Pravastatin diol lactone has been shown to be effective in reducing serum cholesterol levels in animal models and inhibiting esterification of cholesterol by preventing the conversion of HMG-CoA to mevalonic acid, which is an important step in the synthesis of cholesterol. Pravastatin diol lactone is a polyketide that was discovered from a fungus and chemically altered to produce this drug.</p>

<p>25-Hydroxyvitamin D2 3-hemisuccinate is a drug product that belongs to the group of natural products. It is a metabolite of vitamin D2 and has been shown to have anti-inflammatory properties. 25-Hydroxyvitamin D2 3-hemisuccinate is used as an analytical standard for HPLC, but it is also used in research and development for drug development. This product can be used as an impurity standard for API's because it is easily purified and stable in storage. Research has shown that this compound may be effective in protecting against osteoporosis, cardiovascular disease, and cancer.</p>

<p>2-[(2,6-Dichlorophenyl)amino]benzeneacetic Acid 2-(carboxymethoxy)-2-oxoethyl ester is a drug product that belongs to the class of Custom synthesis. It is a metabolite of loratadine, an antihistamine drug. The compound is a metabolite of loratadine, which is an antihistamine drug used for the treatment of allergies. It is produced by the oxidation of loratadine by cytochrome P450 enzymes and can be detected in urine at concentrations up to 5 ng/mL. 2-[(2,6-Dichlorophenyl)amino]benzeneacetic Acid 2-(carboxymethoxy)-2-oxoethyl ester has been shown to be effective in inhibiting the growth of bacteria that are resistant to penicillin and erythromycin.</p>

<p>Mono-(4-methyl-7-oxooctyl)phthalate (MMP) is a metabolite of the phthalate esters, which are synthetic chemicals used in plastics and other materials. MMP has been detected in the urine of neonates and preschool children, suggesting that it can be absorbed through skin contact. This compound is also found in wastewater, where it may cause estrogenic effects on human cells. The reaction solution of MMP with insulin-like growth factor (IGF) was studied by kinetic analysis and logistic regression to determine its binding affinity for IGF binding proteins. MMP has shown to be biodegradable under aerobic conditions.</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>4-Chloro-2-(iminophenylmethyl)-N-methylbenzenamine is a potent inhibitor of protein kinases that are involved in the regulation of cell cycle progression and apoptosis. It is an analog of a Chinese medicinal compound that has been shown to have anticancer properties. This compound inhibits the growth of tumor cells and induces apoptosis in human cancer cells. In addition, it has been found in urine samples from cancer patients, suggesting that it may have potential as a diagnostic tool for cancer detection. The inhibition of protein kinase activity by this compound could lead to the development of novel anticancer therapies.</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>Perindopril-N-desethylpentanoate is a drug product that is used in research and development of new drugs. It belongs to the class of drugs called angiotensin converting enzyme inhibitors, which act by inhibiting the conversion of angiotensin I to angiotensin II. Perindopril-N-desethylpentanoate can be used for the manufacture of HPLC standards. It can also be used as an analytical standard for impurities found in API, and has been shown to have niche applications in metabolism studies. This compound is purified to high purity levels that meet pharmacopoeia requirements.</p>