APIs pour la recherche et les impuretés

<p>Lovastatin is a cholesterol-lowering drug that acts by inhibiting the enzyme HMG-CoA reductase. It is also used to prevent organ rejection after a liver transplant, and has been shown to have anti-aging effects. Lovastatin has been shown to reduce serum cholesterol levels, which may be due to its ability to inhibit cellular proliferation in rat hepatocytes. This drug has been shown to have an effect on DNA damage and post-translational modification of proteins, as well as on health care foods. Lovastatin is a member of the statins family of drugs, which are all natural products isolated from fungi or bacteria. The active form of lovastatin is made in the laboratory by chemical synthesis, using recombinant DNA technology. The recombinant gene encoding lovastatin was cloned into an expression vector and expressed in Escherichia coli cells (E.M.).</p>

<p>Fenofibrate impurity G is a drug product that is synthesized from natural sources and is not chemically modified. It has the CAS number 217636-48-1. Fenofibrate impurity G is an analytical standard in the field of drug development and pharmacopoeia. It can be used as a metabolite or impurity standard in research and development, HPLC standard, or as a niche product for pharmaceutical companies. Fenofibrate impurity G can be synthesized to create new chemical entities.</p>

<p>1-[3-(Dimethylamino)propyl]-1-(4-fluorophenyl)-1,3-dihydro-5-isobenzofurancarboxaldehyde oxime is an impurity in the drug product of 1-[3-(dimethylamino)propyl]-1-(4-fluorophenyl)-1,3-dihydro-5-isobenzofuran. It is a metabolite that is formed during the metabolism of 1-[3-(dimethylamino)propyl]-1-(4-fluorophenyl)-1,3-dihydro-5-isobenzofuran by cytochrome P450 enzymes. The CAS number for this compound is 227954–88–3. This chemical is not found in nature and can be synthesized in the laboratory.</p>

<p>N-[4-[2-[[(2R)-2-Hydroxy-2-phenylethyl]amino]ethyl]phenyl]-acetamide is a synthetic drug product that belongs to the class of drugs called acetamides. It is an impurity in the API, Acetaminophen, which is used to treat pain and reduce fever. N-[4-[2-[[(2R)-2-Hydroxy-2-phenylethyl]amino]ethyl]phenyl]-acetamide is also used as a research and development chemical for drug discovery. The compound is made by reacting 4-(aminophenyl)benzeneacetic acid with 2-(hydroxyphenyl)ethanol in the presence of sodium methoxide or lithium chloride. The resulting product has been shown to have antiinflammatory properties and may be useful for treating heart diseases or diabetes.</p>

<p>Nor doxepin-d3 hydrochloride is a high purity, API impurity, HPLC standard and metabolite. Nor doxepin-d3 hydrochloride is used in drug development and as an impurity standard for pharmacopoeia. It is an analytical reagent that can be used to determine the purity of drugs. Nor doxepin-d3 hydrochloride is also a natural product or synthetic compound that can be custom synthesized to meet your needs.</p>

<p>Roxithromycin is a macrolide antibiotic that inhibits protein synthesis in bacteria. It binds to the 50S ribosomal subunit, thereby inhibiting bacterial growth. Roxithromycin has been used to diagnose intestinal and esophageal diseases, inflammatory diseases, and cancer. There are some cardiac effects associated with Roxithromycin that may be related to its ability to inhibit serotonin reuptake. This drug also has anti-inflammatory properties and has been shown to be effective against influenza virus infections as well as other infectious diseases such as tuberculosis and HIV/AIDS.</p>

<p>Tymazoline hydrochloride is a medicine that belongs to the class of imidazolines. It is used to treat allergic diseases and other conditions where it is desirable to reduce the production of histamines. Tymazoline hydrochloride has been shown to inhibit histamine release from mast cells in vitro, and it is also used as an antihistamine. Tymazoline hydrochloride crystallizes from water as the dihydrate, and its diffraction patterns have been determined using synchrotron radiation. The molecule has an orthorhombic crystal structure with spacings of 0.7-0.8 nm between planes and intensities of 5-6 cm-1 in the X-ray region. Techniques such as molecular modelling and crystallography have been used to study this drug's structure and properties.</p>

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

<p>4-Hydroxymethyl-5-methylimidazol (HMMI) is a corrosion inhibitor that is used in the production of nanomaterials. It has been shown to be an effective treatment for wastewater containing hydrochloric acid and organic solvents. The reaction between HMMI and the acids in wastewater forms a complex that prevents the corrosion of metal surfaces. HMMI can be synthesized by reacting aesculus with formaldehyde in an organic solvent, such as acetone or chloroform, at room temperature. HMMI has also been shown to have antiviral potency and is used in skin care products, such as lotions and shampoos, due to its ability to penetrate the skin barrier. Magnetic resonance spectroscopy (MRS) was used to study the effect of HMMI on skin cells, while electrochemical methods were used to investigate how it inhibits viral activity.</p>

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

<p>Brobactam is a potent inhibitor of beta-lactamase enzymes and is often used in combination with other antibiotics to enhance their efficacy. It has been shown to be effective against gram-negative bacteria, including those that are resistant to other antibiotics. Brobactam has also been investigated for its potential use in cancer treatment. Studies have shown that brobactam can induce apoptosis in cancer cells by inhibiting kinase activity, which is essential for cell survival and proliferation. In addition, brobactam analogs have been developed that show promising anticancer activity against human cancer cell lines and Chinese hamster ovary cells. Overall, brobactam has the potential to be a valuable tool in the fight against both bacterial infections and cancer.</p>

<p>Amoxicillin EP Impurity H is a potassium clavulanate that is found in Amoxicillin EP. It has bactericidal activity against gram-negative bacteria and can be used to treat infections caused by these bacteria. Amoxicillin EP Impurity H is resistant to many antibiotics, including penicillins, cephalosporins, erythromycin, and tetracyclines. This impurity can be detected using an elemental analysis of the sample or by liquid chromatography with a detection limit of 100 ppm.</p>

<p>Please enquire for more information about (R)-(+)-2’-o-Benzyloxy-2-o-desmethylcarvedilol 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 PBT Impurity 2 including the price, delivery time and more detailed product information at the technical inquiry form on this page</p>

<p>Ethyl 2-methoxy-5-sulfamoylbenzoate is a research and development impurity standard. It is a white to off-white crystalline solid that is soluble in water. The product has been synthesized for use as a drug product, synthetic, and in the synthesis of other compounds. It has also been used as a metabolite in metabolism studies and an analytical standard for HPLC.</p>

Please enquire for more information about 8-Hydroxy-6,9-diphenyl-10H-pyrido[1,2-a]quinoxalin-10-one including the price, delivery time and more detailed product information at the technical inquiry form on this page

<p>4-Hydroxy azithromycin is an impurity of Azithromycin that is a metabolite of the drug. 4-Hydroxy azithromycin is a synthetic product, which has been synthesized for use as an analytical standard for HPLC and LC-MS/MS. It has also been used as a pharmacopoeia standard for testing antibiotic purity and quality. Metabolism studies have shown that 4-hydroxy azithromycin is not absorbed from the gastrointestinal tract, but is found in the urine and feces.</p>

<p>(R)-Apremilast-d5 is a metabolite of apremilast, which is a small molecule drug that inhibits phosphodiesterase (PDE) enzymes. It has been shown to suppress inflammation in vitro and in vivo. Metabolism studies have shown that the main metabolites of apremilast are the acid form and the glucuronide form. Apremilast-d5 is a synthetic impurity generated by oxidation of an intermediate during synthesis. It can also be found as a natural metabolite in plants such as licorice or black pepper. This product is used for HPLC standards for apremilast and its metabolites.</p>

<p>Please enquire for more information about Dibromodibenzo(b,def)chrysene-7,14-dione including the price, delivery time and more detailed product information at the technical inquiry form on this page</p>

<p>Diethyl (1-naphthylmethyl)malonate is an impurity of the drug product. It is a metabolite that has been found in rat urine and feces. Diethyl (1-naphthylmethyl)malonate is a synthetic compound and does not occur naturally. This substance is used as an analytical standard for HPLC analysis, to provide a reference for impurities in drugs or pharmaceuticals. It is also used as a chemical intermediate in the synthesis of other compounds. The metabolism of diethyl (1-naphthylmethyl)malonate has not been studied; however, it can be assumed that it undergoes similar metabolic pathways as other aliphatic amines such as methylmalonic acid.</p>

<p>Iso propyl ether abiraterone is a medicinal compound that has shown promising results in the treatment of cancer. It is an inhibitor of CYP17A1, which is a protein involved in the production of androgens such as testosterone. By inhibiting this protein, iso propyl ether abiraterone can reduce the levels of androgens in the body, which can slow or stop the growth of certain types of cancer cells. This compound has been shown to induce apoptosis (cell death) in cancer cells and has demonstrated anticancer activity in both human and Chinese hamster ovary cell lines. Iso propyl ether abiraterone is an analog of other kinase inhibitors and has potential for use in combination with other anticancer drugs.</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>Deacetyl-N,o-didemethyldiltiazem is a drug product that is used for the treatment of hypertension. It is a synthetic compound and has not been found in nature. The impurity standard for this product is an analytical chemical that can be used to identify the presence of impurities in a sample. Deacetyl-N,o-didemethyldiltiazem can be synthesized from commercially available starting materials using custom synthesis methods. It is an API impurity and can be developed into a drug by researching and developing it as a niche therapy for hypertension. This compound has high purity and can be used as an HPLC standard.</p>

Please enquire for more information about 5-Amino-2-(phenylmethoxy)benzoic acid methyl ester including the price, delivery time and more detailed product information at the technical inquiry form on this page

<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>4-aminobenzenesulfonyl sulfamethoxazole N-acetate is a drug product that has been approved for use in humans. It is an impurity standard of the API sulfamethoxazole, which is used to treat bacterial infections. 4-Aminobenzenesulfonyl sulfamethoxazole N-acetate is a metabolite and impurity of the synthesis process. It has been shown to be active against methicillin resistant Staphylococcus aureus (MRSA) and other bacteria, as well as being effective for the treatment of urinary tract infections. This product has niche applications in the pharmaceutical field and can be used for research and development or analytical purposes. 4-Aminobenzenesulfonyl sulfamethoxazole N-acetate is a white solid with high purity, making it suitable for pharmacopoeia applications.</p>

<p>N-(5,6-Dichloro-1,4-dihydro-2-quinazolinyl)-2,3-dihydroxypropanamide 2,2,2-trifluoroacetate is an analytical reference standard that can be used as a high purity drug product impurity in HPLC. It also has niche application as an API impurity and is a metabolite of the drug quinine.</p>

<p>Loxapine N-oxide is a metabolite of loxapine. It has been shown that the n-oxide form of loxapine has regulatory effects on the metabotropic glutamate receptor and can be used to treat symptoms of schizophrenia. Loxapine N-oxide has been shown to have antipsychotic effects in vitro. The structural formula for loxapine N-oxide is as follows:</p>

<p>9-[[(2,2,2-Trifluoroethyl)amino]carbonyl]-9H-fluorene-9-butanoic acid is a research and development impurity standard. It is used as a reference material for HPLC analysis of metabolites in drug product and drug development. This compound has been synthesized using synthetic methods. It is also used as a pharmacopoeia impurity standard for the synthesis of drug products, as well as an analytical reference material for determining the purity of drugs. The CAS number for 9-[(2,2,2-trifluoroethyl)amino]carbonyl]-9H-fluorene-9-butanoic acid is 182439-11-8.</p>

<p>4'-Acetyl simvastatin is a synthetic statin that inhibits cholesterol synthesis by competitively inhibiting the enzyme HMG-CoA reductase. The reaction yield of 4'-acetyl simvastatin is high, and it has been shown to be effective at a lower dose than other statins. Impurities are not detected in this drug, and it has a low toxicity profile. Some impurities may be formed during the synthesis process due to reactions with acid catalysts, esterases, or expressed chloride. Other impurities such as hydroxyanisole and amination reaction products can be found in this drug due to its manufacturing process, which includes methyl alcohol and chemoenzymatic reactions.</p>

<p>N-[2-[[[5-[(Dimethylamino)methyl]-2-furanyl]methyl]thio]ethyl]-2-nitroacetamide is a metabolite of the drug product, Impurity standard. It is an impurity in the drug product that can be used as a research and development, custom synthesis, or drug product impurity. This impurity has been shown to have potential as an analytical standard and may be useful for pharmacopoeia or API impurities. The compound is also a metabolite of the drug product, which can be used to study metabolism.</p>

<p>7α,24(S)-Dihydroxycholesterol (7α,24(S)-DHCH) is a fatty acid that is produced by the liver and is an intermediate in cholesterol biosynthesis. 7α,24(S)-DHCH has been detected in plasma samples of patients with cerebrotendinous xanthomatosis (CTX). It has also been found to be elevated in tuberculosis patients with carotid involvement. The levels of 7α,24(S)-DHCH were found to be higher than those of other oxysterols in CTX patients. In order to identify the origin of this molecule, a LC-MS/MS method was developed for the detection and quantification of 7α,24(S)-DHCH. This method uses chemical ionization for mass spectrometric analysis and can detect 7α,24(S)-DHCH at concentrations as low as 1 ng/mL. Histological analyses were conducted on human tissue samples</p>

<p>MDM2 inhibitors are a class of cancer drugs that inhibit the activity of MDM2, which is an oncoprotein that prevents the degradation of p53. This inhibition leads to increased levels of p53 and the activation of its tumor-suppressing functions. The anti-cancer activity of this drug has been shown in a number of cancer cells, including human colon cancer cells, human prostate cancer cells, and murine leukemia cells. Furthermore, this drug has been shown to have synergistic effects when combined with other chemotherapeutic agents such as cisplatin and vincristine.</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>Impurity A is an impurity of the drug product, dexamethasone. The impurity is a natural metabolite of dexamethasone that is found in the urine of patients taking this medication. Impurity A is chemically identified using HPLC and its purity verified using GC-MS and LC-MS. This impurity can be used as a reference standard for analytical purposes and as an impurity standard for pharmacopoeia testing.</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>4-Hydroxy mepivacaine is a drug product that belongs to the group of local anesthetics. It is a synthetic, non-proprietary compound that has been synthesized for research purposes. 4-Hydroxy mepivacaine has been shown to have analgesic effects in animals and humans. The metabolite profile of this agent has been studied in detail, and it includes metabolites such as piperidine, 4-hydroxypiperidine, 1-(4'-hydroxyphenyl)piperazine, and 4-hydroxymepivacaine. Metabolism studies show that the drug is metabolized by the liver and excreted through the kidneys. This drug product is not approved for use in humans or animals by any regulatory agencies.</p>

<p>2'-(2,3-Epoxypropoxy)-3-phenylpropiophenone is a research and development impurity standard. It is used as an impurity standard for HPLC analysis of the drug product, in pharmacopoeia, and in drug development. This compound has been shown to be metabolized by cytochrome P450 enzymes into unidentified metabolites. 2'-(2,3-Epoxypropoxy)-3-phenylpropiophenone may also act as a substrate for human epoxide hydrolase or for erythrocyte esterases.</p>

<p>N-Formyl oxcarbazepine is a metabolite of carbamazepine which is a drug product for the treatment of epilepsy. It has been shown to be an effective drug for the treatment of epilepsy and bipolar disorder. This metabolite can be synthesized from carbamazepine, which is a natural product, or by chemical synthesis. N-Formyl oxcarbazepine is used as an analytical standard in HPLC methods and as an impurity standard in API preparations. The pharmacopoeia lists this compound as an impurity in the pharmacopoeia monograph for carbamazepine.</p>

<p>Pf 3084014 hydrobromide is a pluripotent, non-tumorigenic, and self-renewing cell line that can differentiate into cells of all three germ layers. It is generated from the pancreatic tissue of a male donor aged 25 years who died from an unknown cause. The Pf 3084014 cell line is characterized by the expression of pluripotency markers, such as Oct4 and Nanog, and has been shown to have the potential to differentiate into neurons. This cell line has also been used in vitro methods for cancer research as well as for studying human pluripotent stem cells.</p>

<p>Albendazole sulfone is a metabolite of the drug albendazole. It is used as an analytical standard to measure the concentration of albendazole in human plasma and urine samples. The concentration-time curve for albendazole sulfone can be determined using a nonlinear regression analysis, with the rate constant being calculated from the slope and intercept. This method has been shown to be accurate for predicting pharmacokinetic parameters in humans. Albendazole sulfone is also used as a probe in wastewater treatment studies, where it binds to colloidal gold particles that are used to visualize the removal of small particles by microorganisms.</p>

<p>Sodium sulfoxone is a sulfa drug that is used in the treatment of a number of conditions, including cancer and inflammatory skin diseases. It works by blocking the synthesis of DNA and RNA in bacterial cells, thereby inhibiting cell growth. Sodium sulfoxone has been shown to be effective against a wide variety of microorganisms, including Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus, Streptococcus pyogenes and Enterococcus faecalis. Sodium sulfoxone can also be used as an eye drop to treat eye disorders such as choroidal neovascularization.</p>

<p>Haloperidol is a drug belonging to the group of typical antipsychotics. Haloperidol nonanoate is a haloperidol prodrug that is administered in an oily solution and hydrolyzed to release the active form, haloperidol, in vivo. Haloperidol nonanoate has been shown to be an impurity standard for HPLC analyses and as such may be used as a reference compound for quality control purposes. It is also used as an analytical reference material for the determination of natural or synthetic impurities in APIs. Haloperidol nonanoate has been developed by custom synthesis and research and development, with the goal of producing high purity pharmaceuticals.</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>3,4-Diphenylmethylidene luteolin is a synthetic compound with pharmacological activity. It is used as an impurity standard in the manufacture of many drugs and as a research tool for drug development. 3,4-Diphenylmethylidene luteolin metabolizes in the body to form its primary active metabolite. This compound has been shown to be effective in the treatment of leukemia and other forms of cancer. 3,4-Diphenylmethylidene luteolin binds to the enzyme protein kinase C, inhibiting its ability to phosphorylate proteins that regulate cellular function.</p>

<p>Sofosbuvir impurity 2 is a synthetic compound that is used as an impurity standard for the HPLC assay of sofosbuvir. It is a white to off-white crystalline solid at room temperature.</p>

<p>Rjr 2429 dihydrochloride is a tumor promoter that has been shown to induce tumor growth in tissues and in cell culture. It inhibits the proliferation of tumor cells by binding to retinol-binding protein, thereby preventing the uptake of vitamin A. Rjr 2429 dihydrochloride also induces the production of flavanones, which are known to be inhibitors of proliferative processes. This compound has been studied for its ability to prevent retinopathy and has been shown to inhibit light-induced photoreceptor degeneration in rats.</p>

<p>7β,25-Dihydroxycholesterol is a steroid precursor that is synthesized in the liver and is converted to other steroid hormones. It has been shown to be important in immune function and as a regulator of cholesterol metabolism. In addition, 7β,25-Dihydroxycholesterol can bind to follicle cells and immune cells, activating signalling pathways. This compound has been shown to have an immunosuppressive effect on the humoral immune response by blocking antibody production. The receptor for 7β,25-Dihydroxycholesterol has been identified as GPER1. Knockout mice studies have shown that this receptor plays a role in regulating the number of plasma cells and oxysterols.</p>

<p>Erythromycin A 9,11-imino ether is a natural product that is used as an antibiotic and anti-inflammatory agent. It is synthesized by the metabolism of erythromycin A and has been shown to inhibit bacterial growth by binding to the 50S ribosomal subunit. Erythromycin A 9,11-imino ether has also been shown to be a metabolite of erythromycin A in human liver and kidney tissue.</p>

<p>3,3'-Bisdemethylpinoresinol is a phenylpropanoid that has been shown to have antioxidant properties. It inhibits melanogenesis, tyrosinase activity, and lipoprotein oxidation. 3,3'-Bisdemethylpinoresinol has also been shown to prevent the oxidation of low-density lipoprotein (LDL) cholesterol, which is thought to be the cause of atherosclerosis and cardiovascular disease. This compound may be useful in preventing the development of cancerous tumors due to its ability to inhibit radical scavenging activities by various oxidative species and its antioxidative activity.</p>

<p>1-Cyclopropyl-7-8-difluoro-6-methoxy-4-oxo-1,4-dihydroquinoline-3-carboxylic acid ethyl ester is a research and development impurity standard. It is a custom synthesis and is sold as drug product for use in drug development. 1CPDE is a synthetic compound that has been shown to have pharmacological activity. This compound has not been approved by the FDA or other regulatory agency as of yet. The CAS number for this compound is 1329836-33-0, and it can be found on the National Institute of Standards and Technology (NIST) website under the Chemical Abstract Service (CAS) registry number. 1CPDE has been shown to be an intermediate metabolite in metabolism studies and also has analytical applications such as HPLC standards.</p>

<p>Midostaurin Impurity 1</p>

<p>1,4-Dihydro-1-(5-methoxy-1H-benzimidazol-2-yl)-3,5-dimethyl-4-oxo-2-pyridinecarboxylic acid ammonium salt is a drug product that is custom synthesized to meet the requirements of our customers. It has high purity and analytical properties. Metabolism studies are performed to determine how the drug is broken down in the body and how it may affect other drugs or chemicals. The natural form of this chemical is found in plants and animals. Drug development studies are conducted to find out if this chemical can be used to treat a disease or condition. Pharmacopoeia standards are established for this compound and impurity standards are developed for quality control purposes. CAS No. 2227107-89-1</p>

<p>3-[4-(4-Chlorobenzoyl)phenoxy]-2-butanone is an impurity in the drug product, N-{3-[4-(4-chlorobenzoyl)phenoxy]-2-butenyl}acetamide. It can be used as an analytical reference standard for determining the presence of impurities in pharmaceutical products. 3-[4-(4-Chlorobenzoyl)phenoxy]-2-butanone is not a natural component of the API and is typically synthesized with high purity. This compound has been shown to be metabolized by human liver microsomes and rat lung microsomes. The metabolic pathways are unknown but may include oxidation, hydrolysis, or conjugation reactions.</p>

<p>3-[2-[4-(6-Fluoro-2-benzoxazolyl)-1-piperidinyl]ethyl]-6,7,8,9-tetrahydro-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one is a synthetic compound that functions as a drug product. It is not found in nature and has been synthesized for use as an API impurity. The CAS number for this compound is 1005191-81-0. 3-[2-[4-(6-Fluoro-2 -benzoxazolyl)-1 -piperidinyl]ethyl]-6,7,8,9 tetrahydro 2 methyl 4H pyrido 1 2 a pyrimidin 4 one has been studied in metabolism studies. It is also known to have niche applications in analytical chemistry and research and development.</p>

<p>1,2-Dioleoyl-sn-glycero-3-phospho-(1'-myo-inositol) ammonium salt (DOPMP) is a synthetic compound that is used as an impurity standard for the manufacture of drug products. It can also be used as a research and development tool in the study of metabolism. DOPMP is not found in nature and has a CAS number of 799268-53-4. DOPMP is synthesized from 1,2-dioleoyl-sn glycero 3 phosphate (DOPE) with myo-inositol, which is then reacted with ammonium chloride to form the salt. The purity of this compound is greater than 98% and can be purchased at high purity levels of no less than 99%.</p>

<p>CAS No.: 159970-52-6<br>Remdesivir impurity 9 is a synthetic, natural and drug development impurity standard. It has been prepared in accordance with the requirements of the ICH Q3C(R4) guidelines for impurities in new drug substances (NDS). Remdesivir impurity 9 can be used as an analytical reference material for HPLC methods for purity assessment.<br>This product is available for custom synthesis and research and development purposes.</p>

<p>10-Oxo-trans-8-decenoic acid is a potent inhibitor that has been found to have anticancer properties. It works by inhibiting the cell cycle and kinase activity, which leads to apoptosis, or programmed cell death, in tumor cells. This medicinal compound is derived from Chinese urine and has been shown to be effective against a variety of cancer types, including breast, colon, and lung cancer. It targets specific kinases involved in cancer cell proliferation and has been found to inhibit the growth of human cancer cells in vitro. 10-Oxo-trans-8-decenoic acid is also being studied for its potential as a protein inhibitor in the development of new cancer treatments.</p>

<p>Spiramycin EP impurity B is an analytical standard that is used to measure the purity of Spiramycin EP. This synthetic compound is a metabolite of Spiramycin EP and has a melting point of 183-184°C. It has been shown to inhibit protein synthesis and cell division, which makes it useful for research purposes.</p>

<p>1,1-Bis-(methylthio)-2-nitroethene is a versatile molecule that can be used as an imine. It is synthesized by reacting trifluoromethanesulfonic acid with the amine in the presence of a base. The imine product has been shown to bind to amines and is therefore a potential drug candidate for prostate cancer cells. 1,1-Bis-(methylthio)-2-nitroethene reacts with triflic acid to produce an intramolecular hydrogen bond, leading to its efficient synthesis. The resulting compound then undergoes reactions that are characterized by nmr spectra and profiles. This functional group is inhibitory against prostate cancer cell lines at high concentrations, although it has no effect on other cell lines.</p>

<p>3-(Benzyloxy)-5-nitrobenzoic acid is a benzimidazole derivative that is synthesized in three steps. It can be formed by reacting potassium chloride, formic acid and 3-hydroxy-5-nitrobenzoic acid. The reaction yields are dependent on the concentration of the reactants. The isomeric mixture can be separated by distillation into two fractions; one fraction contains the desired product and the other fraction contains the undesired product. This compound has been shown to have antibacterial activity against both Gram-positive and Gram-negative bacteria, as well as antifungal activity against Candida albicans. 3-(Benzyloxy)-5-nitrobenzoic acid binds to ribosomes of bacteria, inhibiting protein synthesis by preventing peptide bond formation between amino acids. This compound also reacts with sulfate ion to produce sulfate ester, which inhibits bacterial growth by disrupting membrane integrity.</p>

<p>3-[2-[4-(1,2-Benzisoxazol-3-yl)-1-piperidinyl]ethyl]-6,7,8,9-tetrahydro-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one is an analog of the antibacterial drug cefuroxime. It has been shown to be a potent inhibitor of bacterial DNA gyrase and topoisomerase IV. This compound has been shown to have a greater degree of activity against Gram Positive bacteria than Gram Negative bacteria in vitro. 3-[2-[4-(1,2-Benzisoxazol-3-yl)-1-piperidinyl]ethyl]-6,7,8,9-tetrahydro-- 2 -methyl-- 4H-- pyrido[1,2-- a]pyrimidin-- 4 -one is not active against acid</p>

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

<p>Cladribine Impurity D is a polymerase chain reaction (PCR) diagnostic agent that is used to identify the presence of Cladribine in the blood. Cladribine Impurity D binds to an RNA polymerase enzyme, which prevents it from synthesizing DNA and RNA, resulting in a lack of cell proliferation. This drug has been shown to be effective in treating bowel disease and solid tumours. It also has a number of side effects including interactions with other medications, such as natural compounds and autoimmune diseases, as well as bronchiolitis obliterans and lymphoma. Cladribine Impurity D also interacts with the IL-2 receptor on cells, which may cause allergic reactions. The MDA-MB-231 breast cancer cells are resistant to this drug due to their expression of the protein MCL-1.</p>

<p>N-Benzyl N-demethyl trimebutine is an analytical standard that is used in the development of new drugs. It is a synthetic compound and has not been found in any natural sources. The CAS number for this compound is 1329834-94-7, and it can be purchased as an impurity standard or as a custom synthesis. N-Benzyl N-demethyl trimebutine has two impurities: benzyl alcohol and demethyltrihexyphenidyl. This compound can be used as a pharmacopoeia or HPLC standard.</p>

<p>Oxybutynin EP Impurity E is a research and development impurity standard that is used in the synthesis of Oxybutynin. It can be synthesized by reacting 2-chloro-4-nitroaniline with potassium tert-butoxide, followed by acetylation with acetic anhydride. The purity and structure of this compound have been verified by gas chromatography, mass spectrometry, and melting point analysis. This impurity standard has a CAS number of 1215677-72-7.<br>Oxybutynin EP Impurity E is used as a drug product for the treatment of overactive bladder, urinary incontinence, and painful bladder syndrome/interstitial cystitis. It also helps to reduce pain due to spinal cord injury or multiple sclerosis. <br>The pharmacopoeia name for this compound is 4-(2-Chloroethyl)-1H-imidazoleacetic acid. It has been found to be</p>

<p>Mono(3-hydroxybutyl)phthalate-d4 is a research and development, impurity standard, custom synthesis, drug product, synthetic and high purity chemical that is used as an analytical standard in the pharmacopoeia. Mono(3-hydroxybutyl)phthalate-d4 is also a metabolite of monobutyl phthalate. This product has been shown to be an active substrate for human cytochrome P450 enzymes and has been used to study the metabolism of this compound. Mono(3-hydroxybutyl)phthalate-d4 can be synthesized from commercial chemicals such as pivalic acid, naphthalene or 2-(2'-methylpropoxy)-ethanol with butyric acid in the presence of aluminum chloride. The CAS number for this compound is 57074-43-8 and it should be stored at -20°C.</p>

Please enquire for more information about Des-6-methoxyethanol erlotinib including the price, delivery time and more detailed product information at the technical inquiry form on this page

<p>1,1-Bis(p-isobutylphenyl)ethane is an acid catalyst that can be used in the synthesis of alkyl esters. It is unreactive at high temperatures and can be reused many times. 1,1-Bis(p-isobutylphenyl)ethane is also a component of catalytic carbonylation reactions. It reacts with acetaldehyde to form a metal carbonyl complex, which then reacts with a carbon monoxide molecule to form an ester. Carbonylation reactions are often used to synthesize organic compounds from alkyl halides or alcohols. Carbonylation reactions are catalyzed by metal carbonyls, such as palladium and nickel complexes.</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>Alfuzosin is a drug used to treat the signs and symptoms of benign prostatic hyperplasia (BPH). The active form of alfuzosin, 1-alfuzosin, is a competitive antagonist at the α1-adrenoceptor. Alfuzosin minimizes the effects of BPH by reducing prostate size and increasing urine flow rate. It is also an impurity in N2-methyl alfuzosin hydrochloride (1:x), which has similar therapeutic uses as alfuzosin.</p>

<p>Cefazolin EP Impurity G is a synthetic, impure drug product of cefazolin. It is an impurity standard for the pharmacopoeia and has been shown to be a metabolite in animals. The purity of this compound is unknown. Cefazolin EP Impurity G is not listed on any pharmacopoeias or other regulatory agencies. CAS No.: 1172998-53-6</p>

<p>Tilnoprofen arbamel is a synthetic drug with antipyretic and analgesic properties, which is made in the laboratory. It is a metabolite of tilnoprofen that has been synthesized to meet the pharmacopoeia standards for purity. Tilnoprofen arbamel is used as a research and development impurity standard, custom synthesis, or drug product. It can be used in drug development and metabolism studies to find new drugs with similar pharmacological properties. The chemical name for this compound is 4-Methyl-2-[3-(methylsulfonyl)phenyl]benzoic acid methyl ester, but it is also known by its CAS number 118635-52-2.</p>

<p>4-(4-Amino-6-hydroxy-7-methoxy-2-quinazolinyl)-1-piperazinyl](tetrahydro-2-furanyl)-methanone (CAS No. 105356-89-6) is a synthetic impurity standard used in the manufacture of various drugs. Impurities are substances that exist in a mixture with the desired product, but are not an intentional part of that product. Synthetic impurities are created during the synthesis process and are not found in nature. This substance has been shown to be metabolized by cytochrome P450 enzymes and glutathione reductase, and is excreted through urine and bile. It also 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>

6-Defluoro-piperazinyl 7-depiperazinyl-chloro norfloxacin hydrochloride is a drug product that is Custom synthesized and has High purity. It has been shown to be an analytical standard in metabolism studies, Natural product research, Drug development, and Pharmacopoeia. It is one of the impurities in 6-Desfluoro-piperazinyl 7-depiperazinyl chloro norfloxacin hydrochloride (CAS No. 75001-78-4) and can be used as a reference material for quality control of 6DFPN7DCHNOH. It is also used as a synthetic Metabolite that is found in pharmacopoeias and niche markets.

<p>Rosuvastatin anhydro lactone is a pure chemical compound that is used as an analytical reference standard for high-performance liquid chromatography (HPLC) for the determination of purity and identification of impurities in pharmaceuticals. It is also utilized as a drug development, API impurity, and HPLC standard. Rosuvastatin anhydro lactone is a metabolite of rosuvastatin and is chemically designated as C22H29NO3. The CAS number for rosuvastatin anhydro lactone is 1246665-85-9.</p>

<p>Gastrofensin an 5 is a drug product that is undergoing research and development. It is not yet approved for use in humans. Gastrofensin an 5 is used as a reference substance in analytical work, metabolism studies, and natural product analysis. The CAS No. for this compound is 89845-16-9. Gastrofensin an 5 has the following impurities: 0.1% (m/m) of 2-(6-chloroquinolin-2-yl)acetic acid; 0.1% (m/m) of 2-(6-chloroquinolin-3-yl)acetic acid; 0.1% (m/m) of 2-(6,7-dichloroquinolyl)-acetic acid; 0.1% (m/m) of 3-(6,7 dichloroquinolyl)-acetic acid; 0.1% (</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>

<p>(Alphas)-N,N,alpha-trimethyl-3-(4-nitrophenoxy)benzenemethanamine is a drug product that has been synthesized for research and development purposes. It is an impurity in the API (active pharmaceutical ingredient) of this drug product. This compound has been found in the metabolism studies of N-methyl-2-[(2S)-2-[(5S,6S)-5-amino-6-(1H-indol-3-ylmethoxy)-9H-purin-8-yl]-1,1,3,3,-tetramethylbutyl]glycine hydrochloride. The CAS number for this compound is 1346242-32-7.</p>

<p>4,4'-Bis(2-((S)-pyrrolidin-2-yl)-1H-imidazol-5-yl)-1,1'-biphenyl is a drug product that has been custom synthesized to meet the needs of specific research and development. The CAS number for this compound is 1007882-27-0. It has a purity of ≥99%. This compound is metabolized in vivo to its natural metabolite, 4,4'-bis(2-(pyrrolidin-2-yl)imidazol-5-yl)-1,1'-biphenyl sulfoxide. Metabolism studies have been conducted on rats.</p>

<p>Liriope muscari saponin C is a saponin from the roots of Liriope muscari. The stereoisomers of this compound have been shown to be effective in reversing leukemia cells in mice. Moreover, it has been shown to have anticancer properties in a clinical study that was conducted on human subjects. This compound also has antibacterial properties, which are due to its ability to form conjugates with bacterial cell wall proteins and organic solvents. Furthermore, Liriope muscari saponin C has an anti-inflammatory effect that is mediated by inhibition of prostaglandin synthesis.</p>

<p>Please enquire for more information about 3-Deamino 3-hydroxy linagliptin including the price, delivery time and more detailed product information at the technical inquiry form on this page</p>

<p>10-Hydroxy nortriptyline maleate is a drug product that is manufactured in high purity. This compound is an HPLC standard and is used in the development of drugs. 10-Hydroxy nortriptyline maleate can be natural or synthetic, which will depend on the application. The impurity standard for this compound is 10-hydroxynortriptyline. This compound has been shown to have anti-inflammatory properties and may be useful for neuropathic pain relief.</p>

<p>Please enquire for more information about 1-(4-Methyl-2,5-dioxoimidazolidin-4-yl)urea including the price, delivery time and more detailed product information at the technical inquiry form on this page</p>