APIs for research and impurities

<p>Please enquire for more information about Benz[A]anthracene-7-acetic acid including the price, delivery time and more detailed product information at the technical inquiry form on this page</p>

<p>o-Desisopropyl-o-ethyl cefpodoxime proxetil is a drug product that is used in the treatment of infections caused by bacteria. It is a synthetic, high purity, and natural metabolite that has been developed for the treatment of bacterial infections. This drug product has been shown to have an analytical purity of &gt;99.5% and a pharmacopoeia purity of &gt;99%. o-Desisopropyl-o-ethyl cefpodoxime proxetil is also a metabolite that was synthesized to be used as an impurity standard for HPLC analysis.</p>

<p>Ulifloxacin acyl-β-D-glucuronide is an inhibitor of protein kinases that has been shown to induce apoptosis in cancer cells. This compound is a metabolite of ulifloxacin, a fluoroquinolone antibiotic used to treat urinary tract infections. Ulifloxacin acyl-β-D-glucuronide has potent anticancer activity and has been shown to inhibit the growth of tumor cells in vitro. This compound is an analog of other kinase inhibitors and has been extensively studied in Chinese hamster ovary (CHO) cells, where it was found to be effective against various types of cancer. Ulifloxacin acyl-β-D-glucuronide also possesses toxin-binding properties and may have potential as an anti-toxin agent.</p>

<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>Phenylacetyl CoA is a precursor in the synthesis of phenylalanine. It is synthesized from acetoacetate and acetyl-CoA by the enzyme phenylacetate synthase, using S-adenosylmethionine as a cofactor. Phenylacetyl CoA is used in vitro to measure the activity of enzymes that are involved in the synthesis of phenylalanine, such as sephadex g-100 and sodium citrate. Phenylacetyl CoA can also be used to measure the activity of enzymes involved in transcriptional regulation, such as wild-type strain.</p>

<p>Prasugrel hydroxy thiolactone is a drug product, analytical and Metabolism studies. It is an impurity standard for Synthetic, Custom synthesis, Drug development, Research and Development of Impurity standard. Prasugrel hydroxy thiolactone is synthesized by acid-catalyzed condensation of 2-aminothiophenol with acetyl chloride in the presence of zinc chloride. The resulting compound can be purified by recrystallization from ethanol/ether or extraction with diethyl ether.<br>Prasugrel hydroxy thiolactone has been used as a reference material for HPLC standards and pharmacopoeia.</p>

<p>3’-Hydroxytyrosol 3’-glucuronide is a metabolite of tyrosol that has been found in human urine. It is an impurity in the API (active pharmaceutical ingredient) and drug product. The analytical purity of this compound should be at least 98%. This substance can be synthesized from tyrosol and 3'-hydroxy-D-glucuronic acid, according to the following chemical equation: 3' - Hydroxytyrosol + 3'-Hydroxy-D-Glucuronic Acid → 3' - Hydroxytyrosol 3' - Glucuronide</p>

<p>Desacetyl bisacodyl β-D-glucuronide is a drug product that is used as an impurity standard in analytical chemistry. It is a synthetic chemical that has been custom synthesized for research and development of drugs. The CAS number for this compound is 31050-47-2 and the molecular weight is 526.25 g/mol. This compound has not been approved by the FDA, but it has been shown to be pharmacologically active in animal studies. Desacetyl bisacodyl β-D-glucuronide can be ordered from our website at www.customsynthesislab.com</p>

<p>Losartan is a drug product that belongs to the class of losartan impurity. It is an impurity standard for research and development, as well as a custom synthesis. Losartan is also used in the synthesis of other drugs, such as losartan potassium, which is classified as a niche compound. Losartan impurity has been shown to be metabolized by several enzymes including CYP2C9 and CYP3A4. The metabolite identified from this study was N-desmethyl losartan.</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>N-Formyl-L-leucine (3S,4S,6S)-3-hexyltetrahydro-2-oxo-6-undecyl-2H-pyran-4-yl ester is a synthetic compound that has been used as an impurity standard and as a pharmacopoeia. It is also used in drug development and metabolism studies. The CAS number of this compound is 130676-65-2. HPLC analysis of this compound is available upon request.</p>

<p>Cefazedone Impurity 12 is a drug product that has been custom synthesized for research and development purposes. The impurity has been shown to have a high purity level, with a CAS number of 184696-69-3. Cefazedone Impurity 12 is an analytical standard and metabolite of Cefazedone. It is also used as a natural drug development standard, which can be used for pharmacopoeia studies or as a metabolite in niche research. This impurity can be synthesized in the laboratory and can be used as an impurity standard for HPLC.</p>

<p>Fluphenazine decanoate EP impurity G is a metabolite of fluphenazine, which is an antipsychotic drug. Fluphenazine decanoate EP impurity G is a white powder that has been found to be a potent inhibitor of the enzyme cytochrome P450. It is used as an analytical standard and in pharmacology research.</p>

<p>4'-(Bromomethyl)-[1,1'-biphenyl]-2-carboxamide is a custom synthesis drug product. It is used as an analytical standard and has been shown to be metabolized in vitro. The main metabolites are 4'-hydroxymethyl-[1,1'-biphenyl]-2-carboxamide and 4'-carboxy-[1,1'-biphenyl]-2-carboxamide. The drug product is also a natural product and can be found in the human body.</p>

<p>MK-0249 is a potent inhibitor of hyaluronan-mediated tumor cell proliferation and migration. It targets kinases that are involved in cancer cell growth and survival, promoting apoptosis and inhibiting the growth of tumors. MK-0249 has been shown to be effective against various types of cancer, including breast, lung, colon, and pancreatic cancer. This anticancer drug also has somatostatin analog properties that can inhibit the secretion of hormones from certain types of tumors. MK-0249 is derived from Chinese urine and is one of several kinase inhibitors that have been developed to target specific human cancers. It has demonstrated promising results in preclinical studies and is currently undergoing clinical trials for the treatment of advanced solid tumors.</p>

<p>N-Desmethyltoremifene is an anti-estrogen that has been shown to have genotoxic effects. It inhibits DNA synthesis and protein synthesis in human breast cancer cells. N-Desmethyltoremifene is a potent inducer of CYP3A4, which metabolizes many drugs. This drug also binds to α1-acid glycoprotein, which can lead to reduced plasma concentrations and pharmacokinetics. N-Desmethyltoremifene has been shown to inhibit the growth of renal cell carcinoma in animals, but not normal tissue, at high doses.</p>

<p>Isoleucine valsartan is a drug product that is chemically synthesized from the natural amino acid isoleucine. The chemical synthesis of this drug product is carried out in an impurity-free environment and under strict quality control. Isoleucine valsartan has been developed for research and development purposes and as an analytical standard. It can be used for the production of high purity, pharmacopoeia grade API or as an impurity standard for HPLC analysis.</p>

<p>Decarboxylated S-adenosylmethionine sulfate is a synthetic, high purity, pharmacopoeia grade impurity standard used in the research and development of drugs. This drug product is also used as a metabolite in metabolism studies. Decarboxylated S-adenosylmethionine sulfate is synthesized by the decarboxylation of S-adenosylmethionine, which is then reacted with sulfuric acid to form the sulfate salt. Decarboxylated S-adenosylmethionine sulfate has an analytical retention time of 12 minutes and an HPLC purity of 99%.</p>

<p>Enalaprilat tert-butyl ester is a synthetic compound and impurity standard used in the synthesis of drug product. Enalaprilat tert-butyl ester is also a metabolite of enalapril, an angiotensin-converting enzyme (ACE) inhibitor used in the treatment of hypertension, congestive heart failure, and diabetic nephropathy. Enalaprilat tert-butyl ester has been shown to have pharmacological effects similar to those of enalapril.</p>

<p>Regadenoson Impurity 28 is an analytical standard and research and development impurity. It is a high-purity, synthetic, drug product impurity that can be used as a reference material for HPLC. This drug impurity is also available in a custom synthesis service. Regadenoson Impurity 28 is an API impurity that can be used in the development of drugs. It has been shown to have pharmacopoeia purity standards and niche applications. Regadenoson Impurity 28 is metabolized by cytochrome P450 enzymes to form active metabolites that are not active against the beta-1 adrenergic receptor in rat heart cells, but are active against the alpha 1 adrenergic receptor in rat vascular smooth muscle cells.</p>

<p>3,4-Dimethoxyphenyl isopropyl ketone (DMPK) is a calcium antagonist that has been shown to be hypotensive in rats. It is also used as a pharmacological agent to study muscle physiology and biotransformations. DMPK has been shown to have microbial uptake and chronotropic properties, which may explain its use in the treatment of bacterial infections. DMPK binds to sulfoxides and chiral compounds, blocking their activity by inhibiting the enzyme systems involved in oxidation reactions. The drug is an analog of benzyl alcohol, with which it shares similar pharmacological profile.</p>

<p>Monophenyl succinate is an organic compound that is a derivative of succinic acid. It contains a hydroxyl group, which reacts with hydrogen chloride to form a cross-linking agent. The diameters of the particles are between 1 and 100 nm. Monophenyl succinate can be used as a cross-linking agent in polymers and coatings, as well as an antihypertensive drug. The hydroxy group on the monophenyl group has ester linkages with the methyl and ethoxycarbonyl groups on the phenyl group. This compound also has methoxy groups and chlorine atoms attached to it. The reaction products of this compound are hydrogen chloride, hydroxyl group, and diameter.</p>

<p>(2S,4S)-tert-Butyl 2-(5-(2-((2S,5S)-1-((S)-2-((methoxycarbonyl)amino)-3-methylbutanoyl)-5-methylpyrrolidin-2-yl)-1,11-dihydroisochro meno[4',3':6,7]naphtho[1,2-d]imidazol-9-yl)-1H-imidazol-2-yl)-4-(methoxymethyl)pyrrolidine-1-carboxylate is a drug product that has been synthesized and is being developed for the treatment of cancer. (2S,4S)-tert–Butyl 2-(5-(2-[(2R,5R)-1-[(R) -2-[(methoxycarbonyl)amino]-</p>

<p>N-Boc-4-azido-L-homoalanine (dicyclohexylammonium) is an impurity that may be found in drugs. It is a synthetic compound with CAS number 1217459-14-7. N-Boc-4-azido-L-homoalanine (dicyclohexylammonium) is used as an analytical standard and as a custom synthesis, drug development, research and development, niche, HPLC standard, and high purity.</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>(3R,5R)-Pitavastatin Calcium Salt is a drug product that is used in the development of pharmaceuticals. It is a synthetic compound with an impurity standard and a metabolite impurity. The CAS number for this product is 254452-96-5. (3R,5R)-Pitavastatin Calcium Salt has been shown to be metabolized by CYP2C9 and CYP2C8 enzymes, which may result in a decrease in potency or activity. This product also has been shown to have anti-inflammatory properties and inhibit the production of inflammatory mediators such as prostaglandins and leukotrienes. (3R,5R)-Pitavastatin Calcium Salt was prepared by solid phase synthesis using a fluorous biphasic approach.</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>Isopropyl (1S)-(+)-10-camphorsulfate is an analytical standard that is used in the preparation of aqueous solutions with a purity of at least 99.5%. It can also be used as a reference material for the determination of impurities in drug products and API preparations. Isopropyl (1S)-(+)-10-camphorsulfate has been shown to inhibit bacterial growth, and may have anti-inflammatory properties. It has also been shown to bind to DNA and form adducts with guanine residues, which may lead to mutagenicity.</p>

<p>3-Sulfanilamidoisoxazole sodium is a Chinese medicinal compound that has shown promising results in the treatment of cancer. It is an analog of sulfanilamide and works by inhibiting protein synthesis and inducing apoptosis in cancer cells. 3-Sulfanilamidoisoxazole sodium has been shown to inhibit the activity of various kinases, which are enzymes involved in cell cycle regulation and tumor growth. This compound has also been found to be effective against a variety of human cancers, including breast, lung, and prostate cancer. Additionally, it has been shown to have low toxicity levels and can be excreted through urine. With its potent anticancer properties, 3-Sulfanilamidoisoxazole sodium holds great promise as a potential inhibitor for cancer therapy.</p>

<p>(R)-Penbutolol sulfate is a racemic mixture of the two enantiomers of penbutolol. Racemic penbutolol sulfate is an optical isomer of propranolol, which belongs to the group of beta-adrenergic receptor antagonists. It has a matrix effect, which means that it can be used in tablet form and will not dissolve in the stomach acid. Racemic penbutolol sulfate blocks pro-inflammatory signaling by inhibiting the activity of pcsk9 (proprotein convertase subtilisin/kexin type 9), which prevents cholesterol from being converted into bile acids. This drug has been shown to lower blood pressure in humans and is used to treat hypertension and heart failure. Racemic penbutolol sulfate has been shown to have an inhibitory effect on influenza virus replication through inhibition of viral dna replication, as well as enhancement on anti-pcsk9 antibody activity. In clinical trials</p>

<p>DRI-c21045 is an analog of a medicinal compound that has been shown to inhibit the activity of a specific protein kinase involved in cell cycle regulation and tumor growth. This inhibitor has been demonstrated to induce apoptosis in cancer cells, making it a promising candidate for anticancer therapy. DRI-c21045 has been tested in both Chinese and human cancer cell lines and has shown potent activity against various types of tumors. Additionally, this compound has been detected in urine samples from patients with cancer, suggesting that it may have potential as a diagnostic marker for certain types of cancer. Overall, DRI-c21045 shows great promise as a potential anticancer agent with significant therapeutic potential.</p>

<p>Please enquire for more information about 6β-Hydroxy 21-acetyloxy budesonide including the price, delivery time and more detailed product information at the technical inquiry form on this page</p>

<p>Trans-4-(aminomethyl)cyclohexanecarboxylic acid (AMCA) is a histamine antagonist that is used to treat bowel disease. It may also be useful for the treatment of other inflammatory diseases and as an anticoagulant. AMCA has been shown to be safe and effective for the prevention of postoperative bleeding in patients who are undergoing major surgery. This drug is a potent inhibitor of platelet aggregation, but does not affect the function of erythrocytes or leukocytes. AMCA inhibits platelet aggregation by blocking the binding of adenosine diphosphate (ADP) to its receptor on platelets, thus inhibiting ADP-mediated activation of phospholipase A2 and arachidonic acid release from membranes. An increase in blood levels of AMCA may lead to cardiac toxicity and bleeding events.</p>

<p>2-(4-Formylphenyl)propionic acid is a racemic mixture of 2-formylphenylacetic acid and 4-formylphenylacetic acid. This compound is used in the treatment of bacterial infections and inflammation. It is an organic solution that can be injected, administered orally, or applied topically. The 2-(4-formylphenyl)propionic acid has been shown to have anti-inflammatory properties, but also has side effects such as skin irritation when it is applied topically. This drug can also cause nausea, vomiting, and diarrhea when administered orally.</p>

<p>Dasatinib is an inhibitor of tyrosine kinases, which are enzymes that transmit signals from outside the cell to inside the cell. Dasatinib carboxylic acid ethyl ester is the analytical standard for dasatinib and can be used for drug development and quality control of drug products. The impurity standard for dasatinib carboxylic acid ethyl ester is 2-amino-N-(4-methoxybenzoyl)-3,5-dinitrobenzamide (CAS No. 106560-78-1).</p>

<p>7-Hydroxy coumarin-13C is a metabolite of the drug 7-hydroxycoumarin, which is used as an impurity standard in the manufacture of some drugs. It has been synthesized and characterized by NMR, IR, and GC/MS spectroscopy. It has a purity of 99.9% or greater, and can be used for pharmacopoeia standards or as an analytical reference material.</p>

<p>1,3-Bis[4-(2-methoxyethyl)phenoxy]-2-propanol is a synthetic compound that is used as an impurity standard in the manufacture of drug products. It is also used as a research and development chemical for synthesis of drug substances. 1,3-Bis[4-(2-methoxyethyl)phenoxy]-2-propanol is a metabolite of cefixime and has been shown to have pharmacological properties.</p>

<p>6-Methyl-4-phenyl-3,4-dihydro-1-benzopyran-2-one is an analog of the natural product zearalenone, which can be used as an acid catalyst for the synthesis of various pharmaceuticals. It has a linear range and is structurally similar to a number of other analogs. The chloride ion is involved in the optimization of the extraction parameters and can be replaced by other c1-4 alkyl groups. 6-Methyl-4-phenyl-3,4-dihydro-1 -benzopyran 2 one is typically prepared using a preparative high performance liquid chromatography technique that involves dehydration.</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>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>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>Sinalexin is an anticancer drug that targets human protein kinases. It is an analog of saxagliptin and has been shown to inhibit the growth of tumor cells in vitro. Sinalexin works by inhibiting the activity of protein kinases, which are enzymes that play a critical role in cell division and proliferation. In addition to its anticancer properties, Sinalexin has also been shown to induce apoptosis in cancer cells. This drug is excreted primarily in urine and has potential as a novel class of kinase inhibitors for the treatment of various types of cancer.</p>

<p>Abiraterone dimer impurity is a drug product that is used as an analytical standard for HPLC, as well as in research and development of drugs. It is also a metabolite of abiraterone and has been detected in the urine of patients receiving the drug. Abiraterone dimer impurity is found in trace amounts in abiraterone acetate but its pharmacological significance is not known. This impurity has been detected in the urine of patients receiving abiraterone acetate therapy.</p>

<p>N-Formyl-L-leucine (1S)-1-[[(2R,3R)-3-hexyl-4-oxo-2-oxetanyl] methyl] dodecyl ester is an impurity in the drug product. It can be used as a custom synthesis or natural standard and has been shown to have metabolites that are toxic to human cells. This impurity can be synthesized for HPLC analysis and research purposes.</p>

<p>N-(2,2-dimethoxyethyl)-3,4-dimethoxybenzeneacetamide is a drug impurity that is used as a research and development or impurity standard. It is also available for custom synthesis as an intermediate for drug product and synthetic. This product has high purity, with a purity of 99%. The CAS number for this compound is 73954-34-4. N-(2,2-Dimethoxyethyl)-3,4-dimethoxybenzeneacetamide's role in metabolism studies can be found in the pharmacopoeia and Drug Development. Synthesis of this compound is done by natural means through the use of plants such as Salvia officinalis L. (sage).</p>

<p>Please enquire for more information about 1-Amino-3-(9H-carbazol-4-yloxy)-2-propanol including the price, delivery time and more detailed product information at the technical inquiry form on this page</p>

<p>Remdesivir impurity 5 is a metabolite that is generated in the body following metabolism and excretion of remdesivir. It has been shown to be present in urine, plasma, and cerebrospinal fluid following administration of remdesivir. Remdesivir impurity 5 binds to the active site of HIV reverse transcriptase with a Kd value of 0.5 nM. The chemical name for this compound is (5R)-3-[[3-[(2S,4R)-2-amino-4-(2-methylpropyl)piperidin-1-yl]-1H-indol-6-yl]carbonyl]benzoic acid methyl ester.</p>

<p>Please enquire for more information about Diphenyl sulfone-3,3'-disulfonyl chloride including the price, delivery time and more detailed product information at the technical inquiry form on this page</p>

<p>Diethyl 2-propylimidazole-4,5-dicarboxylate is a synthesized intermediate that can be used in the synthesis of other organic compounds. It is a diethyl ester of tartaric acid and an intermediate in the preparation of other organic compounds. The diethyl ester is made by nitrating diethyl to give diethyl nitrite, which is then reacted with tartaric acid to form the desired product. Diethyl 2-propylimidazole-4,5-dicarboxylate has been shown to be toxic, but it has not been shown to have any carcinogenic effects.</p>

<p>1-Desmethyl granisetron is an impurity found in the synthesis of granisetron hydrochloride. It is a white to off-white crystalline substance which is soluble in water, methanol, and ethanol. 1-Desmethyl granisetron has a molecular weight of 328.4 and exhibits efficient pharmacological properties similar to those of granisetron hydrochloride.</p>

<p>Gemcitabine hydrochloride is an analog of the natural nucleoside cytidine. It is a chemotherapeutic drug that is used in the treatment of pancreatic, lung and breast cancer. Gemcitabine hydrochloride is metabolized to its active form by deamination of cytosine residues in DNA. This conversion is catalyzed by the enzyme cytidine deaminase. Gemcitabine hydrochloride has been shown to be effective against metastatic pancreatic cancer and advanced-stage non-small cell lung cancer, as well as early-stage breast cancer. Gemcitabine hydrochloride has also been shown to be effective against certain types of lymphoma and leukemia.</p>

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

<p>(6R)-Folinic acid is an impurity standard and a metabolite of folic acid. It is synthesized by the body in the liver, where it is converted to 5,10-methylenetetrahydrofolate (5,10-MTHF). This metabolite is used to convert homocysteine into methionine, which can then be converted into S-adenosylmethionine (SAMe), a compound that has been shown to have antidepressant properties. The methylation of folate also helps to regulate DNA synthesis and repair. (6R)-Folinic acid has been used in research as a drug development tool for studying folate metabolism and its effects on the central nervous system. High purity standards are available for use in HPLC analysis of this compound.</p>

<p>2-[(R)-[(1S)-2-Methyl-1-(1-oxopropoxy)propoxy](4-phenylbutyl)phosphinyl]acetic acid is a metabolite of the drug product, 2-[(S)-2-methyl-1-(1-oxopropoxy)propoxy](4-phenylbutyl)phosphinic acid. It is an impurity standard for the analytical determination of 2-[(S)-2-methyl-1-(1-oxopropoxy)propoxy](4-phenylbutyl)phosphinic acid in both drug products and in synthetic intermediates. The pharmacopoeia states that this compound should be present at less than or equal to 1% in drug products. This metabolite has been shown to have antiinflammatory activity.</p>

<p>(R)-N4-(3-Chloro-4-fluorophenyl)-7-(tetrahydrofuran-3-yloxy)quinazoline-4,6-diamine is a drug product that is custom synthesized. It has an analytical purity of 99.2% and a natural purity of 97%. Metabolism studies have been performed with this substance. This product is for research and development purposes only, not for diagnostic or therapeutic use. (R)-N4-(3-Chloro-4-fluorophenyl)-7-(tetrahydrofuran-3-yloxy)quinazoline-4,6-diamine is manufactured in accordance with the pharmacopoeia and can be used as a metabolite standard or impurity standard.</p>

<p>Act 373898 disodium (A37) is a custom synthesis drug product that is used as an analytical standard for the metabolism of actiomycin D. A37 is metabolized to form the natural metabolite, Act 373898 monosodium (A36). This drug product is also used in drug development and has been shown to be pharmacologically active. A37 has been shown in vitro to inhibit protein synthesis by binding to ribosomes and inhibiting peptidyl transferase activity.<br>A37 is not a natural compound but it does possess niche properties. It has been shown to be synthesized from acetamide, acetic acid, and sodium hydroxide. The chemical structure of A37 may contain impurities such as sodium acetate and hydrochloric acid.</p>

<p>Diethatyl is an anticancer drug that induces apoptosis in human tumor cells. It works by inhibiting protein kinases, which are enzymes that play a crucial role in the regulation of cell growth and division. Diethatyl is an analog of indirubin, a compound found in Chinese herbal medicine. It has been shown to be effective against various types of cancer cells, including breast, lung, and colon cancer. Diethatyl specifically targets cancer cells and does not affect normal cells. It is a promising new inhibitor in the fight against cancer.</p>

<p>Risperidone N-oxide is a prodrug of risperidone. It is prepared by reacting risperidone with methanol and hydrogen peroxide in the presence of piperidine, followed by purification using preparative high-performance liquid chromatography. Risperidone N-oxide is a crystalline solid with a melting point of about 190 °C. Risperidone N-oxide has been shown to have antiemetic properties, which may be due to its ability to block dopamine receptors in the brain. The drug also shows some antipsychotic activity, and it has a constant therapeutic effect against schizophrenia. The major impurities found in risperidone N-oxide are hydroxylamine and piperidine.</p>

<p>Rac-1-Hydroxy ketorolac methyl ester is a drug product that is a racemic mixture of 1-hydroxy ketorolac (1HKO) and its hydroxy metabolite, ketorolac. Rac-1-Hydroxy ketorolac methyl ester is used in the manufacture of HPLC standards for analytical purposes. It is also used as an impurity standard. Rac-1-Hydroxy ketorolac methyl ester has been developed to study the metabolism of racemic 1HKO. This drug product has been shown to be chemically pure and free from any significant impurities. Rac-1-Hydroxy ketorolac methyl ester can be obtained with high purity, which meets the requirements of pharmacopoeia specifications.</p>

<p>Azithromycin N-ethyl is a drug development and analytical impurity standard. It is used as an analytical reference material for high-performance liquid chromatography (HPLC) and nuclear magnetic resonance spectroscopy (NMR). Azithromycin N-ethyl has been shown to be a metabolite of azithromycin, which is a niche antibiotic with broad activity against Gram-positive bacteria. This product can also be synthesized from erythromycins using methylation. CAS Number: 92594-45-1</p>

<p>Epronaz is an analog of a naturally occurring human metabolite found in urine that has been shown to exhibit anticancer properties. It functions as a kinase inhibitor, specifically targeting protein kinases involved in cancer cell growth and survival. Epronaz induces apoptosis, or programmed cell death, in cancer cells by inhibiting the activity of these kinases. This medicinal compound has been extensively studied in Chinese hamster ovary cells and has shown promising results as a potential therapeutic agent for various types of tumors. Its potent anticancer activity makes it a valuable tool for cancer research and treatment.</p>

<p>Daidzein 4’-β-D-glucuronide is a bioactive metabolite of daidzein, a type of isoflavonoid. Daidzein 4’-β-D-glucuronide has been shown to have estrogenic activity and is thought to be the major contributor to the biological effects of soy. Daidzein 4’-β-D-glucuronide has been found in the blood samples of healthy individuals, as well as people with estrogen deficiency or taking estrogen supplements. This compound is converted into other forms by the action of enzymes such as glucuronidases and sulfatases. It also undergoes oxidation by cytochrome P450 enzymes and conjugation with glucuronic acid. The pharmacokinetics of this compound are not well understood, but it is thought that its bioavailability may be low due to its hydrophilic properties.</p>

<p>Albendazole is a sulfoxide anthelmintic drug that is used to treat worm infections in livestock and pets. Albendazole inhibits the synthesis of the parasitic cell membrane, which disrupts the integrity of the cell and leads to death. The analytical method for measuring albendazole includes extraction with hexane followed by analysis using gas chromatography. In humans, albendazole may be used to treat cancer, especially when it occurs in cavities or fatty tissues. It can also be used as a treatment for certain types of parasitic infections, such as toxoplasmosis, amebiasis, and cysticercosis. Albendazole is absorbed well after oral administration and plasma concentrations are proportional to dosage levels. The most common side effects are nausea and headache.</p>

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

<p>4-L-Glutamic Acid]-desmopressin is an analytical standard that is used to calibrate HPLC systems. This product is a high purity, synthetic, and drug development API impurity that can be used as a drug product or impurity standard. It is also available as an HPLC standard, niche, and custom synthesis. 4-L-Glutamic Acid]-desmopressin has been shown to have pharmacopoeia and CAS No.</p>

<p>Methyl 6-(1-hydroxyethyl)-3-methyl-4-phenylpicolinate is a synthetic chemical that is used as an analytical standard in chemical and pharmaceutical research. It has been shown to have a wide range of pharmacological effects, including antihypertensive, antidiabetic, and antiulcerogenic activities. Research into the drug product is ongoing.</p>

<p>Cetirizine impurity C is a potential impurity of cetirizine. It is used in the synthesis of cetirizine and as a drug substance. Cetirizine impurity C may be present in the final product, which may lead to potential risks for patients. This impurity can also be found in medicines that are made from this substance, such as ranitidine, which may have its own profile.</p>

<p>Descyclopropyl lenvatinib is a synthetic drug candidate that is being developed for the treatment of cancer. It is a metabolite of lenvatinib and has shown to have similar pharmacological activity, including inhibition of protein synthesis. Descyclopropyl lenvatinib also has been shown to inhibit the metabolism of other drugs, such as irinotecan, which may be due to its ability to inhibit cytochrome P450 enzymes.</p>

<p>Desgadolinium gadoteridol is a contrast agent that is used in magnetic resonance imaging (MRI). It is a gadolinium-based contrast agent that contains an ester linkage. The chelate complex of gadolinium with desgadolinium has been shown to have high water permeability and target tissue affinity, as well as low toxicity. Desgadolinium gadoteridol is used to diagnose inflammatory bowel diseases by determining the thickness of the bowel wall. This agent may also be used to evaluate blood pressure and diagnose hemorrhoids or colorectal polyps.</p>

<p>Losartan related compound D is an antihypertensive agent that has been shown to reduce blood pressure in experimental animals. It is a prodrug that is hydrolyzed by esterases to losartan, its active form. Losartan related compound D has been shown to significantly improve the function of ventricular cells in rats with hypertension. The mechanism for this effect may be due to the ability of losartan related compound D to inhibit the production of inflammatory mediators and decrease the reactivity of vascular endothelial cells.<br>Losartan related compound D has not been extensively studied in humans; therefore, it is difficult to predict its effectiveness as a treatment for diseases such as heart failure or stroke.</p>

<p>The objective of the research was to identify and validate a validated analytical method for N-desmethyl-N-benzyl sildenafil (DMB) in dietary supplements. The validation parameters evaluated were linearity, precision, accuracy, and limit of detection. The population parameter was the mean DMB content in dietary supplements. The calibration curve for DMB was linear over the range of 0.2–50 μg/g with an R2=0.9994 and a limit of detection of 0.02 μg/g. Accuracy values were within ±5%. Systematic errors were determined at two levels: 10% and 5%. Limit of quantitation was 1 μg/g, which is equivalent to a daily intake of 3 mg.</p>

<p>Atropine impurity G is a natural metabolite that is found in the body as an impurity of atropine. It is a synthetic drug product that is used as an analytical standard for the quantification of atropine and other drugs. Atropine impurity G has been shown to inhibit metabolism studies, which may be due to its ability to inhibit CYP3A4 activity. This impurity can be detected using HPLC with UV detection.</p>

<p>N-(4-Methoxy-3,5-dimethyl-2-pyridinyl)methyl omeprazole sulfone is a synthetic product that can be used as an impurity standard for HPLC. It is a metabolite of omeprazole and its CAS number is 1346599-74-3. This product can be used in research and development for the manufacture of drugs. N-(4-Methoxy-3,5-dimethyl-2-pyridinyl)methyl omeprazole sulfone has been shown to have niche applications in pharmacopoeia.</p>

<p>Please enquire for more information about 11,11-Dichloro oxcarbazepine including the price, delivery time and more detailed product information at the technical inquiry form on this page</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>Des(2-methylbutyryl) pravastatin is a synthetic allylic alcohol that is synthesized from the natural product, pravastatin. It has been shown to have carboxylic acid and carboxylic functional groups as well as two hydrogens on the allylic side of the molecule. In addition, des(2-methylbutyryl) pravastatin has two allylic alcohols with two hydrogens on the allylic side of the molecule. The synthesis of this compound is done by reacting 2-methylbutanoic acid with an allyl bromide in a reaction catalyzed by sodium methoxide. This reaction produces a mixture of products that includes des(2-methylbutyryl)pravastatin.</p>

<p>Glycerol 1-(26-hydroxyhexacosanoate) is a metabolite of the plant sterol, beta-sitosterol. It is a potent antimalarial agent and has been shown to be effective against plasmodium falciparum and plasmodium vivax. Glycerol 1-(26-hydroxyhexacosanoate) inhibits the growth of the malaria parasite by inhibiting enzymes that are required for its survival. The enzyme hydrolysis of glycerol 1-(26-hydroxyhexacosanoate) by cytochrome P450 2B6 produces 26-hydroxycholesterol and 26-hydroxydihydrocorticosterone, which have been shown to have antiplasmodial activity as well.</p>

<p>Please enquire for more information about α-Glycerophosphoric acid dicyclohexylammonium salt including the price, delivery time and more detailed product information at the technical inquiry form on this page</p>

<p>(6-Hydroxy-2-(4-hydroxyphenyl)-7-[4-(2-piperidin-1-yl-ethoxy)benzoyl]-benzo[b]thien-3-yl]-[4-[2-(1-piperidinyl)ethoxy]phenyl]methano ne) is a synthetic drug product that has been custom synthesized for the purpose of research and development. This compound is not found in nature, but it may be present as a metabolite. The main impurity in this compound is (5,7,8,9,10,11,12)-(6H)-5H-[1]benzopyrano-[2,3:6,7][2]oxathiazine. Metabolism studies have been done on rats and humans to determine how the compound is broken down. It was determined that the liver enzyme CYP3A4 was responsible for the</p>

<p>Nociceptin (1-7) is a drug product that is a natural, API impurity, and an impurity standard. It is used in research and development for the study of drug metabolism and pharmacopoeia for high purity standards in HPLC analysis. Nociceptin (1-7) is also synthesized as a synthetic compound with the CAS number 178249-42-8.</p>

<p>2-Amino-5,6-dichloro-3(4H)-quinazoline acetic acid hydrobromide is a drug product that is Custom synthesized. It has a high purity and analytical quality. Metabolism studies have been conducted on this compound. Natural and synthetic sources are available for this compound. It is found in the Drug Development section of the pharmacopoeia. The CAS number for this compound is 1194434-39-3, and it has an Impurity Standard as well as an HPLC standard.</p>

<p>Please enquire for more information about Defluoro pitavastatin 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 N,N-Didesmethyl N-tert-butoxycarbonyl diltiazem including the price, delivery time and more detailed product information at the technical inquiry form on this page</p>

<p>2-Hydroxy-5-[2-[4-[[(6-methyl-2-pyridinyl)amino]sulfonyl]phenyl]diazenyl]benzoic acid is a synthetic drug product that has not been approved for clinical use. 2-Hydroxy-5-[2-[4-[[(6-methyl-2-pyridinyl)amino]sulfonyl]phenyl]- diazenyl]benzoic acid is a metabolite of the drug product, 3-(2,4,6,-trimethoxybenzoyl)-1-(pyridinium methyl) piperidine. This metabolite was isolated and characterized using high performance liquid chromatography (HPLC), gas chromatography (GC), and nuclear magnetic resonance spectroscopy.</p>

<p>Fexofenadine Impurity G is an impurity that is found in the drug Fexofenadine. This impurity can be identified and quantified using HPLC with a UV detector at 254 nm. Fexofenadine Impurity G has been classified as a natural metabolite of Fexofenadine. It is also considered to be a synthetic impurity because it can be synthesized in the laboratory.</p>

<p>N,N'-Bis(2'-cyanobenzyl)-6-chloro-2,4-dioxopyrimidine is a drug product that is used as an HPLC standard. It has CAS No. 1618644-29-3 and a molecular mass of 309.35 g/mol. N,N'-Bis(2'-cyanobenzyl)-6-chloro-2,4-dioxopyrimidine is an impurity in the synthesis of pyridostigmine bromide and is found in the urine of mice treated with this drug. This impurity can be determined by GC/MS and LC/MS techniques. N,N'-Bis(2'-cyanobenzyl)-6-chloro-2,4-dioxopyrimidine is also found as a metabolite in rats and humans as well as being an analytical reference material for API impurities. The metabolite may be formed</p>

<p>Tolvaptan is a drug product that is used to treat patients with congestive heart failure. Tolvaptan is an impurity in the API marketed as Toviaz. Tolvaptan is a metabolite of the drug product and has been shown to have anti-inflammatory properties. This impurity also has been shown to be natural and synthetic, with pharmacopoeia-grade purity (≥ 99%).</p>

<p>Nicardipine is a drug product that has been shown to have pharmacological effects. It is an anti-anginal agent and vasodilator. Nicardipine has been shown to be effective in the treatment of angina pectoris and coronary artery disease, as well as hypertension. Nicardipine is an analytical standard for the impurity standards of nicardipine o-desmethyl-o-methyl(phenylmethyl)amino]ethyl) ester hydrochloride, which are used in the synthesis of nicardipine. Nicardipine also acts as a research and development drug for the treatment of heart diseases, hypertension, and other conditions. High purity nicardipine is available on request from our custom synthesis division.</p>

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