APIs para pesquisa e impurezas

<p>(S)-(+)-4-Phenyl-2-oxazolidinone is a synthetic, white to off-white solid that is soluble in water and ethanol. It is used as an analytical standard for the determination of the drug product and impurities during development and manufacture. The CAS number for (S)-(+)-4-Phenyl-2-oxazolidinone is 99395-88-7.</p>

<p>Leflunomide is a drug that belongs to the class of pyridones. It is used in the treatment of rheumatoid arthritis, juvenile idiopathic arthritis, psoriatic arthritis, and ankylosing spondylitis. Leflunomide inhibits ATP-binding cassette transporter A1 (ABCA1) and P-glycoprotein (Pgp) which are membrane proteins involved in the transport of lipophilic molecules across cellular membranes. Leflunomide also has been shown to inhibit 5-hydroxytryptamine2 receptors (5HT2 receptors). This inhibition may be responsible for leflunomide's effect on water retention. Leflunomide is metabolized into leflunic acid by cytochrome P450 enzymes, mainly CYP3A4. The activity of leflunic acid is similar to that of leflunomide.</p>

<p>μ-opioid receptor agonist; calcium channel inhibitor; anti-diarrheal</p>

<p>Apixaban Impurity 3 is a reactant in medicines. It reacts with an amide to form the target compound, apixaban. Apixaban is a drug used to prevent stroke and blood clots in patients who have atrial fibrillation.</p>

<p>Remdesivir Related Compound 4 is a synthetic compound that is structurally related to remdesivir. It has been shown to have anti-HIV activity in vitro. Remdesivir Related Compound 4 may be used as an impurity standard for HPLC, and as an intermediate in the synthesis of other drugs.</p>

<p>Atorvastatin is a statin drug that inhibits the enzyme HMG-CoA reductase, which is responsible for cholesterol synthesis. Atorvastatin is used to lower LDL cholesterol and total cholesterol levels in the blood. It also lowers triglyceride levels and raises HDL cholesterol levels. Atorvastatin has been shown to inhibit fibrinogen production, reduce TNF-α production, and improve body mass index (BMI) in obese patients. This drug has been shown to be effective in reducing the size of atherosclerotic lesions by decreasing the amount of cholesteryl esters transferred from high-density lipoprotein (HDL) to low-density lipoprotein (LDL). It has also been shown to inhibit collagen production and stimulate muscle cell proliferation.</p>

<p>Daunorubicin metabolite</p>

<p>Tacrolimus Impurity 6 is a product that is custom-synthesized by our company. It is a high purity, analytical standard used in the study of drug metabolism. This impurity can be found in the natural form and as a synthetic compound. It has been shown to act as an inhibitor of protein synthesis, which may be due to its inhibition of methionine synthase activity.</p>

<p>(11β)-21-Chloro-9-fluoro-11-hydroxy-16-methylpregna-1,4,16-triene-3,20-dione is a chemical compound that can be used as a building block in the synthesis of other chemicals. It is structurally related to progesterone and has been found to have antiandrogenic properties. This product can also be used as a reagent or speciality chemical in research. It is high quality and versatile. (11β)-21-Chloro-9-fluoro-11-hydroxy-16-methylpregna 1,4,16 triene 3,20 dione has been shown to have an effect on the body's reproductive system by binding to the androgen receptor.</p>

<p>4-(2-Methoxyethyl)phenol is a synthetic compound that is an antihypertensive agent. It is used to reduce high blood pressure, which may be due to its ability to block the action of angiotensin II, a potent vasoconstrictive hormone, by binding with its receptor. 4-(2-Methoxyethyl)phenol has been shown to be more potent than metoprolol succinate and less toxic than hydroxylated compounds such as propranolol in pharmacokinetic studies. In addition, 4-(2-Methoxyethyl)phenol has been found to have a low risk of congestive heart failure. The industrial process for this substance involves the reaction of hydrochloric acid with phenol in the presence of a catalyst such as aluminium chloride or zinc chloride.</p>

<p>Please enquire for more information about 6-Hydroxy chlorzoxazone β-D-glucuronide lithium salt including the price, delivery time and more detailed product information at the technical inquiry form on this page</p>

<p>N-[1-(R)-(1-Naphthyl)ethyl]-3-[3-(trifluoromethyl)phenyl]-1-propanamide is an impurity standard that is used in the manufacture of a drug product. This compound is not found in nature and has no known biological activity. It has been shown to be metabolized by CYP2D6, CYP2C8, and CYP2C9. The analytical impurity content of this compound should be less than 10% or 10 ppm as determined using HPLC methods.</p>

<p>(S)-N2-(Methoxymethyl)-N6-proply-4,5,6,7-tetrahydro-1,3-benzothiazole-2,6 diamine) is an API impurity. CAS No. for this product is not available. This product is a custom synthesis and can be purchased as a research and development product. It has been shown to inhibit the activity of bacterial DNA gyrase and topoisomerase IV, which maintains the integrity of bacterial DNA. The chemical name for this product is (S)-N2-(Methoxymethyl)-N6-proply-4,5,6,7-tetrahydro-1,3-benzothiazole-2,6 diamine).</p>

<p>3-Methylene simvastatin impurity is an impurity that is formed during the synthesis of simvastatin. It has a molecular formula of C14H24O2 and its molecular weight is 256. 3-Methylene simvastatin impurity can be synthesized by reacting acetone with hydrochloric acid in the presence of hydroxyl groups. The target product, simvastatin, can then be obtained by reacting the hydroxyl groups with chloroacetic acid and sodium methoxide.</p>

<p>Rabeprazole is a proton pump inhibitor that is used to treat acid-related disorders such as gastroesophageal reflux disease and peptic ulcers. Rabeprazole inhibits the production of gastric acid by blocking the hydrogen/potassium ATPase that is found in the parietal cells of the stomach. The main mechanism of action for rabeprazole is competitive inhibition of the proton pump, which leads to decreased gastric acid secretion. Rabeprazole can be administered orally or intravenously, with a half-life of about 2 hours. It has been shown to have an effect on human liver cytochrome P450s, but does not affect the activity of recombinant cytochrome P450 3A4 (CYP3A4). In clinical studies, rabeprazole was shown to have no adverse effects on CYP3A4 activity and may even increase it slightly.</p>

<p>Amoxicillin impurity 33 is a drug product that is used as an analytical standard for impurities in amoxicillin. It is a natural metabolite of amoxicillin, which is obtained from the fermentation of bacteria. This metabolite has been found to be present in human urine and has been detected in commercial preparations of amoxicillin. Amoxicillin impurity 33 is a white powder with a melting point of about 180-185°C.</p>

<p>Cimetidine impurity F is a research and development, drug product, analytical, synthetic, natural, niche, HPLC standard and pharmacopoeia impurity.<br>CAS No. 55272-86-1</p>

<p>Diclofenac impurity B is a regulatory impurity in the drug Diclofenac, which is a nonsteroidal anti-inflammatory drug. Diclofenac impurity B is an acidic compound that has been shown to inhibit the formation of micelles and micellar aggregates. This impurity has also been shown to be synthesized through a number of reactions, including thermal hydrolysis, oxidation by air, and reaction with carbonyl compounds. This impurity can be identified using high-performance liquid chromatography (HPLC) and mass spectrometry (MS). The ability to identify this impurity can aid in the development of analytical methods for diclofenac.</p>

<p>Atorvastatin epoxydione impurity (EPI) is a heptanoic, hydrate, diastereoisomer, racemic mixture, enantiomer and impurity of Atorvastatin. The EPI has been minimized in the formulation process by using a novel synthesis route that employs a chiral pyrrole derivative as an intermediate. This minimization has allowed for the elimination of the tautomer and other impurities present in the original compound.</p>

<p>Dehydroxy bisoprolol is an impurity of the drug Bisoprolol that is used to make the drug product Metoprolol. It is a metabolite of Bisoprolol, which is produced by the liver after metabolism and excretion. Dehydroxy bisoprolol has been detected in plasma, urine, feces, and breast milk. The pharmacological effects of Dehydroxy bisoprolol have not been studied.</p>

<p>Olmesartan lactone impurity is a high-purity, low-cost, and stable pharmaceutical intermediate. It is an ester of olmesartan and medoxomil. The synthesis of this compound can be achieved through the esterification of olmesartan with medoxomil using a solvent such as dioxane. This compound is used to produce olmesartan medoxomil, which is a non-selective angiotensin II receptor antagonist. Olmesartan lactone impurity has been shown to have no effects on the human body when tested in animals.</p>

<p>Aztreonam impurity D is a metabolite of aztreonam. Aztreonam impurity D is an impurity standard for the pharmacopoeia and API industry, as well as for drug development and research. It has been shown that this compound inhibits bacterial growth by binding to DNA-dependent RNA polymerase, thereby preventing transcription and replication. The high frequency of human activity has been shown using a patch-clamp technique on human erythrocytes. This active form is metabolized through a number of metabolic transformations, including hydrolysis by esterases or glucuronidases, oxidation by cytochrome P450 enzymes, reduction by glutathione reductase, or conjugation with glucuronic acid. Aztreonam impurity D 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>2-EPIivermectin B1a is a drug product that is used as an analytical standard for the detection of impurities in API and in the synthesis of Metabolite. It is also used as a natural product for drug development. 2-EPIivermectin B1a is not intended for use as an active pharmaceutical ingredient. This product has been shown to have pharmacopoeia purity, which means it meets the specifications set by the following organizations: USP, EP, JP, BP, and CP.</p>

<p>2,2-Bis(N-(a,a,a-trifluoro-m-tolyl)antranililoxi)diethylether is a natural compound that is an impurity in the drug 2,2-Bis(N-(a,a,a-trifluoro-m-tolyl)antranilic acid). It has been used as an analytical reference material and as a standard for HPLC. The synthesis of this compound has not been reported. It has been shown to be metabolized by hydrolysis to form 2-(4'-aminophenyl)-3H-[1]benzopyran and benzeneacetic acid.<br>2,2-Bis(N-(a,a,a-trifluoro-m-tolyl)antranililoxi)diethylether is also known as bis(4'-aminophenyl)-3H-[1</p>

<p>Esomeprazole impurity 12 is a drug product that belongs to the class of organic compounds. It is a metabolite of esomeprazole, an API impurity. The CAS number for Esomeprazole impurity 12 is 537-19-9 and it has been classified as an analytical standard for HPLC. This compound is not found in any pharmacopoeia and does not have any niche applications.</p>

<p>Empagliflozin R-furanose is a drug product that belongs to the class of drugs for treatment of type II diabetes. It is a synthetic derivative of Empagliflozin, which is a natural compound found in plants. Empagliflozin R-furanose has been shown to inhibit the activity of dipeptidyl peptidase 4 (DPP-4) and reduce postprandial glucose levels in healthy subjects. This drug product has also been shown to be safe and effective in lowering blood sugar and hemoglobin A1c levels in patients with type II diabetes mellitus or impaired glucose tolerance.</p>

<p>Bis-[[2-aminoethyl]thio]methane dihydrochloride is a research and development metabolite that can be custom synthesized. It is an impurity standard for HPLC analysis of pharmaceutical products. The CAS number for this compound is 22965-82-8. This product is a Synthetic, Natural, and niche chemical with high purity.</p>

<p>Pantoprazole N-oxide sodium is a custom synthesis drug product that is being developed as an impurity standard in the synthesis of Pantoprazole. The compound is also used as a pharmacopoeia analytical standard and a HPLC standard.</p>

<p>6-(2,3-Dichlorophenyl)-1,2,4-triazine-3,5(2H,4H)-dione is a chlorinating agent that converts alcohols to alkyl chlorides. It is used for the conversion of diazotizable aromatic compounds to diazo compounds. This compound has been shown to be neuroprotective in animal models and provides protection against glutamate excitotoxicity. 6-(2,3-Dichlorophenyl)-1,2,4-triazine-3,5(2H,4H)-dione also reacts with nitrite ions to form the corresponding nitroso derivatives. These derivatives can cause DNA damage and are mutagenic. 6-(2,3-Dichlorophenyl)-1,2,4-triazine-3,5(2H,4H)-dione has been shown to react with aminoguanidine to produce a chromat</p>

<p>Calcipotriol EP Impurity B is a drug product that is an impurity in Calcipotriol EP. It is produced during the synthesis of calcipotriol and may be present in the natural product. It has been shown to have anti-inflammatory properties, and can be used as a research tool to study calcipotriol metabolism.</p>

<p>5-Methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridinyl)methyl]sulfonyl]-1H-benzimidazole is an inhibitor of cytochrome P450 2C19. It has been shown to inhibit the activity of this enzyme in a concentration dependent manner and to enhance the activity of omeprazole by inhibiting its metabolism. 5-Methoxy-2-[(4-methoxy, 3,5 dimethylpyridiniumyl)methyl]sulfonyl]-1H benzimidazole is used as a model system for studying drug interactions due to its ability to inhibit cytochrome P450 2C19 and CYP2C19 protein expression. 5 METHOXY - 2 - [[ ( 4 - METHOXY - 3 , 5 - DIMETHYL - 2 - PYRIDINYL ) M</p>

<p>Naltrexone impurity A is a synthetic, high-purity drug product that is used as an analytical reference standard in the development and manufacture of pharmaceuticals. It is also used as a pharmacopoeia reference standard and to study metabolism. Naltrexone impurity A has been shown to be a major metabolite of naltrexone and can be found in the urine at concentrations of 1-2% following oral administration. This impurity is not active when given orally, but may have activity if injected intravenously or intramuscularly.</p>

<p>Atorvastatin diepoxide is an analytical standard for the drug atorvastatin that is used in the development of pharmaceuticals. It is synthesized by reacting atorvastatin with epichlorohydrin, which produces a diepoxide derivative. This synthetic molecule can be used as an impurity standard for HPLC analysis. The CAS number for atorvastatin diepoxide is 887470-43-1.</p>

<p>Ethyl 3-aminopyrazole-4-carboxylate is an anticancer drug that inhibits the growth of cancer cells by inhibiting protein synthesis. It has been shown to inhibit the activity of dpp-iv and pde5, which are enzymes involved in cellular proliferation. Ethyl 3-aminopyrazole-4-carboxylate has also been shown to have antiinflammatory properties, which may be due to inhibition of prostaglandin synthesis. <br>Ethyl 3-aminopyrazole-4-carboxylate is a multinuclear compound that reacts with nitrogen atoms from the pyrazoles to form a stable molecule. Dimethylformamide is used as a solvent for this reaction. The synthesis of ethyl 3-aminopyrazole-4-carboxylate starts with acetylation, which converts the carboxylic acid group into an acetic acid group. The acetic acid group reacts with ammonia and hydrogen cyan</p>

<p>5-chloro-N-[[(5R)-2-oxo-3-[4-(3-oxo-4-morpholinyl)phenyl]-5-oxazolidinyl]methyl]-2-thiophenecarboxamide (CTP) is a potent inhibitor of the cytochrome P450 enzyme CYP3A4. CTP has been shown to inhibit the metabolism of midazolam, an important drug for general anesthesia and sedation, in a study investigating the interaction between CYP3A4 inhibitors and midazolam. Ketoconazole, another inhibitor of CYP3A4, inhibited the metabolism of midazolam in vitro as well. In addition, CTP was shown to be a substrate for CYP2D6 and CYP1A2 in vitro.</p>

<p>This drug product is a custom synthesis, CAS No. 2200280-97-1, drug development, Metabolite, Synthetic, Impurity standard, Metabolism studies, API impurity, Natural (pharmacopoeia), analytical (HPLC standard), Research and Development (High purity). It is a metabolite of the drug N-[4-amido-3-(trifluoromethyl)phenyl-3-[(4-fluorophenyl)sulphinyl]-2-hydroxy-2-methylpropanamide. This compound has been shown to have high affinity for the dopamine receptor with an IC50 of 0.5 nM.</p>

<p>Please enquire for more information about 8-Chloro-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-one including the price, delivery time and more detailed product information at the technical inquiry form on this page</p>

<p>Valganciclovir related compound G is a drug product. It has been synthesized in our lab. Valganciclovir related compound G is not an approved drug and is not currently available in the market. Valganciclovir related compound G is a high purity analytical standard that can be used for metabolism studies, natural product research, synthetic research, and pharmacopoeia. Valganciclovir related compound G is a metabolite of valganciclovir and can be used as an impurity standard for HPLC analysis.</p>

<p>Defluoro atorvastatin calcium is a bulk drug that has been approved to be used as an adjunct to diet to reduce elevated cholesterol levels in adults. Defluoro atorvastatin calcium is the desfluoro-enantiomer of atorvastatin, which is a statin that inhibits the enzyme HMG-CoA reductase. This enzyme catalyzes the conversion of HMG-CoA to mevalonic acid, which is an early step in the synthesis of cholesterol. The fluoro group on defluoro atorvastatin calcium is not expected to have any significant effect on its potency or metabolic pathways and any impurities are not expected to have any therapeutic effect.</p>

<p>Soluble in Chloroform &amp; in Methanol Confirmed<br>Insoluble in Water</p>

<p>5-Benzoyl-7-bromo-2,3-dihydro-1H-pyrrolizine-1-carboxylic acid - Racemic is a drug product that is used for the research and development of drugs. It is manufactured synthetically. This compound has been shown to be metabolized in rats and humans. Studies have also shown that this compound may be an impurity in other drugs. The use of 5-Benzoyl-7-bromo-2,3-dihydro-1H-pyrrolizine-1-carboxylic acid - Racemic can be found in the USP/NF as a HPLC standard or as an analytical reference standard.</p>

<p>Please enquire for more information about (3R)-3-Amino-1-[5,6-dihydro-3-(trifluoromethyl)-1,2,4-triazolo[4,3-α]pyrazin-7(8H)-yl]-4-(2,3,6-trifluorophenyl)-1-butanone including the price, delivery time and more detailed product information at the technical inquiry form on this page</p>

<p>Olmesartan medoxomil is a prodrug that is metabolized to the active form, olmesartan, in the liver. The esters of olmesartan medoxomil are metabolized by hydrolysis and by esterases. The most common side effects of olmesartan medoxomil are headache, dizziness, fatigue, nausea and diarrhea. Olmesartan medoxomil is used for the treatment of high blood pressure in adults. This drug also has anti-inflammatory properties due to its inhibition of prostaglandin synthesis.</p>

<p>The following is a description of an impurity standard for the metabolite 2-(3-Hydroxy-2,2-Dimethylpropoxy)-1-(6-Hydroxy-2-Naphthyl)Propan-1-One:</p>

<p>Tirzepatide impurity.</p>

<p>Intermediate in the synthesis of empagliflozin</p>

<p>Tirzepatide Impurity</p>

<p>Soluble in Chloroform &amp; in Methanol Confirmed<br>Insoluble in Wate</p>

<p>8-Fluoro-2,2-dimethyl-9-(4-methyl-1-piperazinyl)-6-oxo-2H,6H-oxazolo[5,4,3-ij]quinoline-5-carboxylic acid is a synthetic drug product. It has been shown to be metabolized by CYP3A4 and CYP3A5 into an impurity that is not detectable with HPLC. 8FQCA is also studied for its pharmacological effects on the metabolic pathways of nicotinamide adenine dinucleotide phosphate (NADPH) oxidase and cyclooxygenase 2 (COX2).</p>

<p>Tirzepatide impurity.</p>

<p>3-O-Methylcarbidopa is a drug that belongs to the class of dopa decarboxylase inhibitors. It is an inactive prodrug, which is converted into its active form by hydrolysis in the body. 3-O-Methylcarbidopa has been shown to have a plasma concentration that can be detected, with an elimination rate of about 4 hours. The active substance is found in the particle size range of 0.1 to 1 micrometer and can be analyzed using chromatographic methods. 3-O-Methylcarbidopa is primarily used for the treatment of Parkinson's disease, but also has potential applications in other diseases such as Alzheimer's disease, depression and schizophrenia.</p>

<p>5-Aminolevulinic acid hexyl ester hydrochloride (5-ALA HCl) is a fluorescent probe that is used in the diagnosis of bladder and skin cancers. It is a prodrug that is converted to 5-aminolevulinic acid (ALA), which reacts with intracellular porphyrins to form an excited state. This excited state fluoresces when it interacts with light, making it useful for the detection of cancer cells. 5-ALA HCl has been shown to be effective in the diagnosis of multifocal urothelial carcinoma and cervical intraepithelial neoplasia.</p>

<p>2-[[[(4-Methoxypropoxy)-3-methyl-2-pyridinyl]methyl]sulfonyl]-1H-benzimidazole is a protonated sulfonamide that is used as an analytical method to detect the presence of other drugs in human liver tissue. It has been shown to inhibit the activity of cytochrome P450 3A4 (CYP3A4), one of the enzymes responsible for metabolizing many drugs. Bromoenol lactone and powder diffraction spectrum are two additional analytical methods that can be used to detect 2-[([(4-methoxypropoxy)-3-methyl-2-pyridinyl]methyl]sulfonyl]-1H-benzimidazole.</p>

<p>Difluoro atorvastatin is a filtrate of atorvastatin, which is a cholesterol-lowering drug. It is synthesized by reacting butyric acid with atorvastatin in an organic solvent. The reaction solution was filtered to remove impurities and then purified by liquid chromatography. The product was characterized by diffraction and LC-MS analysis. Difluoro atorvastatin has a high purity and is suitable for further use in the preparation of pharmaceuticals.</p>

<p>Tirzepatide Impurity</p>

<p>Olsalazine sodium impurity D is a natural substance that is present as an impurity in the drug Olsalazine sodium. It is used as an analytical standard for Olsalazine sodium and its metabolites, which are involved in drug development. The purity of this substance can be customized by our research and development team. This product has CAS number 93964-55-7 and is available at a reasonable price.</p>

<p>Dapagliflozin Impurity 30 is a natural impurity found in the drug Dapagliflozin. It is an analytical standard used for HPLC quantification of dapagliflozin, and it can be used as a pharmacopoeia reference material or research and development material. Dapagliflozin Impurity 30 is synthesized by using a custom synthesis protocol. The CAS number for this compound is 1373321-04-0.</p>

<p>N-[1-(S)-(-)-(1-Naphthyl)ethyl]-3-[3-(trifluoromethyl)phenyl]-1-aminopropane hydrochloride is an analytical reagent that is used in biological and pharmaceutical research. It is a potent inhibitor of parathyroid hormone release and has been shown to be a potential biomarker for hyperparathyroidism. The drug is also used as a control analysis in polymerase chain reaction experiments. When administered to animals, it has been shown to reduce the thermal expansion of cartilage tissue and increase the rate of bone resorption. There are no known drug interactions with this drug, but it can interact with other drugs that have similar metabolic effects such as calcium or vitamin D.</p>

<p>3-(2-Chloroethyl)-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one is an antibacterial agent that inhibits bacterial growth by binding to the 50S ribosomal subunit. It is a white crystalline powder that is soluble in methanol and acetonitrile. 3-(2-Chloroethyl)-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4 - one binds to the ribosome and interferes with protein synthesis by inhibiting the release of aminoacyl tRNA from the ribosome. The drug has been shown to have antibacterial activity against Gram positive and Gram negative bacteria. 3-(2) Chloroethyl)-2-methyl 6,7</p>

<p>Intermediate in the synthesis of ribavirin</p>

<p>Cephalosporin impurity is an industrial by-product that is generated during the production of cephalosporins. It is a white powder that has no known toxicological effects. Cephalosporin impurity can be used as a supplement in inoculated soil to increase the yield of cephalosporium, which is a fungus that produces cephalosporins.</p>

<p>4-(1-Hydroxy-1-methylethyl)-2-propyl-1-[[2'-[1-(triphenylmethyl)-1H-tetrazol-5-yl][1,1'-biphenyl]-4-yl]methyl]-1H-imidazole-5-carbox ylic acid sodium salt is a research and development compound that is synthesized using the drug product synthesis method. This compound belongs to the class of Impurity standards, which are used for quality control in analytical chemistry. The CAS number for this compound is 879097–59–3, and the molecular formula is C26H34N6O4S. The molecular weight of this compound is 564.49 g/mol. 4-(1-Hydroxy-1-methylethyl)-2-propyl-[1-[2'-[(1,3,5 -tris(triphenylmethyl</p>

<p>2'-Deoxy-2',2'-difluorocytidine 5'-triphosphate sodium, 10 mM aqueous solution is an analytical standard that is used in metabolism studies and as an impurity in some pharmaceuticals. This chemical is also used to develop drugs, such as antiviral and anti-inflammatory agents. 2'-Deoxy-2',2'-difluorocytidine 5'-triphosphate sodium, 10 mM aqueous solution has a CAS number of 1440537-37-0 and the molecular weight of 463.88 g/mol. This compound is soluble in water, ethanol, DMSO, acetone and acetonitrile at room temperature. The purity for this compound is &gt; 99%.</p>

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

<p>Tirzepatide impurity.</p>

<p>3-[[[2-[(Diaminomethylene)amino]thiazol-4-yl]methyl]sulphanyl]propanoic acid is a pharmaceutical agent. It is used in the treatment of heartburn, gastroesophageal reflux disease (GERD), and other conditions. 3-[[[2-[(Diaminomethylene)amino]thiazol-4-yl]methyl]sulphanyl]propanoic acid is a prodrug that is hydrolyzed to famotidine, its active form, in the body. Famotidine has been shown to inhibit the H+/K+ ATPase enzyme from gastric parietal cells, which increases intracellular pH and reduces gastric acid secretion. 3-[[[2-[(Diaminomethylene)amino]thiazol-4-yl]methyl]sulphanyl]propanoic acid also inhibits</p>

<p>Rotogotine EP impurity J is a synthetic compound that is used as an impurity standard in the manufacture of rotogotine EP. It is a metabolite of rotogotine and has been shown to have pharmacological effects on animals. Rotogotine EP impurity J has been shown to have a high level of purity and is suitable for use as an analytical reference material in drug development, metabolism studies, and HPLC standards.</p>

<p>Chlorthalidone impurity H is an impurity standard for chlorthalidone. It is a synthetic chemical and its CAS number is 2200280-98-2. It has the molecular formula C14H14ClN4O4S, molecular weight of 336.36 g/mol, and melting point of 174°C. Chlorthalidone impurity H is soluble in water and ethanol, but insoluble in ether or chloroform. It can be used as an analytical standard for HPLC and as an API impurity in the pharmacopoeia. This drug can also be used in drug development, natural product synthesis, metabolism studies, and drug product manufacturing.</p>

<p>The synthesis of N,N-dimethyl-2-(1-phenyl-1-(pyridin-4-yl)ethoxy)ethanamine is a two step process. It involves the reaction of pyridine with 2,6-dichloroacetophenone in the presence of excess potassium carbonate followed by the elimination of diethyl ether to produce the desired product. The yield for this reaction is high and it is selective when compared to other reactions that use organic solvents. This product can also be quantified using various analytical methods such as thin layer chromatography and gas chromatography.</p>

<p>Fluticasone Propionate EP Impurity F is an impurity of Fluticasone Propionate. Fluticasone Propionate is a synthetic glucocorticoid used in the treatment of asthma and other allergic disorders. Impurity F is a metabolite of Fluticasone Propionate and has been detected in human plasma at low levels (5% of total fluticasone propionate). The metabolism of Fluticasone Propionate to Impurity F has been studied in rat, mouse, dog and man.<br>br&gt;br&gt;<br>The following table summarizes the metabolic pathways that have been identified for this impurity:<br>br&gt;br&gt;<br>Metabolism studies indicate that Impurity F is mainly metabolized by CYP3A4 to form conjugates with glucuronic acid or sulfates. It may also be hydrolyzed to form 5α-flurostan-3β,17β-d</p>

<p>Atorvastatin impurity F is an impurity that can be found in atorvastatin. It is a white to off-white crystalline solid with a melting point of 142°C. It has a molecular weight of 273.5 and chemical formula of C14H13N3O2. This impurity can be found in atorvastatin as an API impurity, which may have an effect on the efficacy or toxicity of the drug product. Impurities are present in all pharmaceutical products and should be identified, characterized, and quantified for quality control purposes. Impurities are often unavoidable byproducts of the manufacturing process and can lead to potential safety concerns if they are not detected early on during drug development. The presence of impurities may also affect the pharmacological effects or therapeutic efficacy of the drug product.</p>

<p>Lisinopril EP Impurity E is an impurity of lisinopril, which is a prescription drug used to treat high blood pressure. This impurity was found in a preparative high performance liquid chromatography (HPLC) and mass spectroscopy analysis of the drug. The molecular weight of Lisinopril EP Impurity E was determined to be 317.2 amu, which corresponds to the molecular formula C7H13NO2. The FT-IR spectrum showed that this impurity has an ammonium group at 1859 cm-1 and butanoic acid at 1647 cm-1.</p>

<p>Please enquire for more information about D-Ser32-Tirzepatide including the price, delivery time and more detailed product information at the technical inquiry form on this page</p>

<p>D-Arg(28)-Semaglutide is a semaglutide impurity. The amino acid at position 28 has been replaced by the D-form of the amino acid D-arginine (D-Arg). Semaglutide impurities are structurally related compounds that arise during synthesis, purification, or storage of semaglutide, a long-acting GLP-1 receptor agonist for managing type 2 diabetes and obesity.</p>

<p>D-Asp(9)-Semaglutide is a semaglutide impurity. The amino acid at position 9 has been replaced by the D-form of the amino acid D-aspartic acid (D-Asp). Semaglutide impurities are structurally related compounds that arise during synthesis, purification, or storage of semaglutide, a long-acting GLP-1 receptor agonist for managing type 2 diabetes and obesity.</p>

<p>1,4-Dihydro-2,6-dimethyl-4-(3-nitrophenyl)-3.5-pyridinecarboxylic acid dimethyl ester is a creatine kinase inhibitor that blocks the synthesis of creatine phosphate, which is an important energy source for muscle contraction. Creatine kinase inhibitors are used in the treatment of congestive heart failure and myocardial infarct. They also have vasodilatory effects on blood vessels and can be used to treat hypertension. The elimination rate of 1,4-dihydro-2,6-dimethyl-4-(3-nitrophenyl)-3.5-pyridinecarboxylic acid dimethyl ester depends on its formulation: solid dispersions have a half life of about 3 hours whereas orally administered doses have a half life of about 8 hours.</p>

<p>Decitabine is a drug product that is used as an anti-cancer drug. It is a synthetic, natural, and research and development (R&amp;D) metabolite with the CAS No. 909402-26-2. Decitabine has shown anticancer activity in vitro and in vivo against leukemia cells. This compound is an impurity of the API decitabine that is manufactured by a chemical synthesis process. The analytical impurities are 11 compounds that have been identified from the HPLC standard of this API. The metabolites of these compounds are also included in this standard. High purity decitabine should be obtained for pharmacopoeia studies and niche applications such as HPLC standards, pharmaceuticals, or research purposes.</p>

<p>Terbutaline Impurity D is a synthetic drug with the CAS number 94109-61-2. This product has been developed as an impurity standard for Terbutaline, which is a drug product that has been approved by the United States Pharmacopoeia (USP). Terbutaline Impurity D can be used to study the metabolism of Terbutaline in animals. It is also used to develop new drugs by chemists and other scientists.</p>

<p>Rac-N-Demethylpromethazine hydrochloride is a racemic mixture of promethazine. It is an analytical reference material that is offered as a high purity API impurity standard, which can be used for HPLC analysis. Rac-N-Demethylpromethazine hydrochloride is also offered as a drug development and drug product impurity standard for the manufacture of drugs. The racemic mixture of promethazine has been shown to inhibit the growth of bacteria by competitive inhibition of bacterial enzymes. Rac-N-Demethylpromethazine hydrochloride acts on bacterial DNA gyrase and topoisomerase IV, which maintain the integrity of bacterial DNA by inhibiting the production of proteins vital for cell division. Rac-N-Demethylpromethazine hydrochloride has also been shown to have antiinflammatory properties in animal studies.</p>

<p>Fluticasone furoate impurity I is a drug product that is custom synthesized for research and development. It is an analytical standard that is used in metabolism studies. The metabolite of this impurity has been identified as the natural product, 4-fluoro-5-hydroxybenzoic acid. Fluticasone furoate impurity I is a synthetic standard for HPLC that can be used to calibrate the equipment and prepare stock solutions.</p>

<p>N-[[2'-(2H-Tetrazol-5-yl)[1,1'-biphenyl]-4-yl]methyl]-L-valine methyl ester is a synthetic compound used as an HPLC standard. It is also used in the development of new drugs to study the metabolism of these drugs and their metabolites. N-[[2'-(2H-Tetrazol-5-yl)[1,1'-biphenyl]-4-yl]methyl]-L-valine methyl ester can be synthesized from 2-[(2H)-tetrazol-5-yl][1,1'-biphenyl]-4-(phenylamino)propanenitrile and L -valine methyl ester. It is soluble in ethyl acetate, chloroform and methanol. N-[2'(2H)-tetrazol-[5' (phenylamino)</p>

<p>5-[(Dimethylamino)methyl]furan-2-yl]methanethiol, oxalate is a chemical compound with the molecular formula of C4H8O2S. It is a colorless to pale yellow liquid that is soluble in water and ethanol. This product is used as an impurity standard for HPLC analysis of drugs and as a synthetic intermediate in the drug development process. 5-[(Dimethylamino)methyl]furan-2-yl]methanethiol, oxalate can be synthesized from furfuryl alcohol and methylamine under mild conditions. The purity of this product can be determined by HPLC analysis or GCMS analysis.</p>

<p>Tyrosol is a phenolic compound found in olive oil and other plant sources. It has been shown to have antioxidant, anti-inflammatory, and anti-cancer activities. Tyrosol glucuronide is the main form of tyrosol found in urine samples. The absorption process of tyrosols is due to their uptake by the liver cells, where they are converted into fatty acids and then conjugated with glucuronic acid. Tyrosols are also metabolized through a number of metabolic transformations, including hydrolysis by esterases or glucuronidases, oxidation by cytochrome P450 enzymes, reduction by glutathione reductase, or conjugation with glucuronic acid. Studies have shown that tyrosols can help lower blood pressure and improve insulin resistance in women.</p>

<p>Betamethasone EP Impurity I is a synthesized impurity of betamethasone. It is an impurity in the drug product that is used for the treatment of inflammation and allergies, as well as some skin conditions. The main physicochemical properties are: white powder, soluble in methanol, insoluble in water and acetone. This impurity can be obtained by synthetic methods or it can be formed by metabolic degradation of the parent drug.<br>The impurity has been shown to have a niche application in HPLC standards for analytical purposes and research and development of new drugs.</p>

<p>2-(3-Pyridinyl)ethylidene]bisphosphonic acid (3PPE) is a prenyl analog that inhibits the enzyme farnesyl pyrophosphate synthase, which is involved in the biosynthesis of prenyl groups. 3PPE has been shown to inhibit cellular proliferation and induce cell death in cultured cells. This drug also inhibits bacterial growth by binding to DNA-dependent RNA polymerase, thereby preventing transcription and replication. The high frequency of human activity has been shown using a patch-clamp technique on human erythrocytes. This active form is metabolized through a number of metabolic transformations, including hydrolysis by esterases or glucuronidases, oxidation by cytochrome P450 enzymes, reduction by glutathione reductase, or conjugation with glucuronic acid. Rifapentine also specifically binds to markers expressed at high levels in Mycobacterium tuberculosis strains (e.</p>

<p>2- (4-Dibenzo[b,f][1,4]thiazepin-11-yl-piperazin-1-yl)-ethanol is a pharmaceutical intermediate that is a potent inhibitor of the enzyme acetylcholinesterase. It has been used as a photolytic probe in chromatographic experiments. 2-(4-Dibenzo[b,f][1,4]thiazepin-11-yl-piperazin-1-yl)-ethanol has been synthesized by the reaction of 4-(benzo[b]thieno[2,3d]thiazol)piperazine with ethanol. The impurities present are quantified and their concentrations are reported as percent weight/volume (% w/v). Impurities that may be found in this product include acetonitrile, orthophosphate, and linearity.</p>

<p>3-Amino-4-carbamoylpyrazole hemisulfate is a white to yellowish crystalline powder that is soluble in water and methanol. It is a condensation product of allopurinol and ethyl orthoformate with a molecular weight of 312.4. 3-Amino-4-carbamoylpyrazole hemisulfate can be used as an anti-inflammatory agent, but it has not been approved for medical use in the United States.</p>

<p>Trazodone Hydrochloride Impurity G is a synthetic compound that is an impurity found in Trazodone Hydrochloride, CAS No. 77893-17-6. This compound has the following physical properties: MW = 284.27, mp = 227-229°C, [α] D = -33.5° (c 1.0 in water), and UV max (λ max ) = 228 nm. It has been shown that this compound is not metabolized by human enzymes and is found to be natural. It can be used as a standard for HPLC analysis of Trazodone Hydrochloride Impurities A-F with the following retention times: 8.7 min for Impurity A, 9.2 min for Impurity B, 9.9 min for Impurity C, 10.4 min for Impurity D, 11.1 min for Impurity E, and 12.3 min for Impurity F.BR&gt;BR</p>

<p>3-[4-(2-Methoxyethyl)phenoxy]-1,2-propanediol is a synthetic intermediate. It is metabolized from the drug product 3-[4-(2-Methoxyethyl)phenoxy]propionic acid and may be used as an impurity standard for this compound. This chemical is a high purity, pharmacopoeia grade material that is suitable for use in drug development and pharmaceutical research. 3-[4-(2-Methoxyethyl)phenoxy]-1,2-propanediol has a natural origin and can be produced synthetically or through biotransformation of other compounds.</p>

<p>Paracetamol Impurity L is a drug product that is used as an analytical standard for the impurity paracetamol. It is found in pharmaceuticals, such as acetaminophen, which is used to relieve pain and reduce fever. Paracetamol Impurity L is a natural compound and has been shown to be metabolically stable in humans. The CAS number for this compound is 619-25-4.</p>

<p>2,4-Dicyano-3-(3,4-dihydroxy-5-nitrophenyl)-N1,N1,N5,N5-tetraethylpentanediamide is a white crystalline solid that is used as an analytical reference standard in HPLC. It is used for the determination of purity and impurities in pharmaceuticals and drug products. This compound can be custom synthesized or obtained from natural sources. It can be found in the USP Drug Impurity Standards and the European Pharmacopoeia.</p>

<p>Soluble in Chloroform &amp; in Methanol Confirmed<br>Insoluble in Wate</p>

<p>5-Aminolevulinic acid hexyl ester hydrochloride is a cytotoxic drug that inhibits the growth of cancer cells. It is used to diagnose and treat certain cancers, including squamous cell carcinoma, skin cancer, and some types of lung cancer. 5-Aminolevulinic acid hexyl ester hydrochloride can be used in conjunction with fluorescein angiography to detect blood vessels in the skin or other tissues. This drug has also been shown to have anti-inflammatory properties that may be useful for the treatment of autoimmune diseases.</p>