APIs pour la recherche et les impuretés

Applications A psychotropic agent with anxiolytic, anticonvulsant, sedative and skeletal muscle relaxant properties. It is a precursor to the active substance Desmethyldiazepam (D291595).
References Ochs, H.R. et al.: J. Clin. Pharmacol., 24, 446 (1984); Takagi, H. et al.: Nip. Yakur. Zas., 66, 134 (1970);

Applications (Z)-2-Methoxyimino-2-furanacetic Acid Ammonium Salt is An intermediate in the preparation of Cephalosporin antibiotics and derivatives.
E3
References Nomura, H., et al.: J. Med. Chem., 17, 12 (1974); Fuzimoto, K., et al.: J. Antibiotics, 40, 370 (1987)

Applications The main phase I metabolites of Azelastine.
References Adusumalli, V., et al.: Drug Metab. Dispos, 20, 530 (1992), Mano, N., et al.: J. Pharm. Biomed. Anal., 12, 557 (1994), Baldwin, S., et al.: Xenobiotica, 25, 261 (1995), Kobayashi, K., et al.: J. Pharmacol. Exp. Ther., 280, 927 (1997),

Applications A potentially related compound in cephalosporin antibacterial compounds. An isomer of Cefuroxime (C248050).
References Chavette, R., et al.: J. Med. Chem., 9, 741 (1966), Miyouchi, M., et al.: J. Chem. Pharm. Bull., 38, 1906 (1990), Sugioka, T., et al.: Chem. Pharm. Bull., 38, 1998 (1990),

Applications Calycosin is a known antioxidant that prevent redox imbalance in organisms. Also, it possesses anti-tumor, anti-inflammation and osteogenic properties; Useful as a therapeutic reagent for bone loss-associated diseases.
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package
References Lu, L., et al.: J. Biosci. Bioeng., 124, 1-7 (2017); Quan, G., et al.: Int. J. Mol. Sci., 16, 29496-29507 (2015)

Applications 2-Hydroxyglutarate-13C5,d8 is used in the 13C NMR detection of 2-hydroxyglutarate in tissue extracts from isocitrate dehydrogenase-mutated gliomas.
References Pichumani, K., et al.: Anal. Biochem., 481, 4 (2015)

Applications A metabolite of Torsemide (T548750).
References Besenfelder, E., et al.: J. Pharm. Biomed. Anal., 5, 259 (1987), Vormfelde, S., et al.: Clin. Pharmacol. Ther., 76, 557 (2004),

Applications Benz[a]anthracen-3-ol is a derivative of the most potent carcinogenic hydrocarbon, 7,12-Dimethylbenz[a]anthracene (D464500), a highly potent carcinogen that is activated by microsomal enzymes to a diol epoxide metabolite that binds covalently to DNA in mammalian cells, leading ultimately to tumor induction. Benz[a]anthracen-3-ol is used in carcinogenesis studies relating to breast cancer.
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package
References Harvey, R. et al.: J. Org. Chem., 69, 2024 (2004); Harvey, R. et a;.: J. Med. Chem., 31, 154 (1988); Lee. H. et al.: J. Org. Chem., 51, 3501 (1986); Huggins, C., et al.: Proc. Nat. Acad. Sci. U.S.A., 58, 2253 (1967), Dipple, A., et al.: N. Cancer Res., 43, 4123 (1983);

Applications Indazolone derivative.

Applications (1S,2S,5S)-4-[2-[2-(6,6-Dimethylbicyclo[3.1.1]hept-2-yl)ethoxy]ethyl]morpholine, is used for the synthesis of Pinaverium Bromide (P465000), a drug used for functional gastrointestinal disorders.
References Gan, Y., et al.: Shenyang Yaoke Daxue Xuebao, 25, 370 (2008); He, L., et al.: Huaxue Yanjiu Yu Yingyong, 20, 600 (2008);

Applications Rosuvastatin Anhydro Lactone, is an intermediate in the production of Rosuvastatin (R700500) derivatives.
References Martin, P., et al.: Clin. Ther., 25, 2215 (2003), Sakaeda, T., et al.: Pharm. Res., 23, 506 (2006),

Applications Daidzein-3',5',8-d3 is labelled Daidzein (D103500) which is an inactive analog of Genistein (Cat. #G350000). It blocks the G1 phase of the cell cycle in Swiss 3T3 cells by inhibiting casein kinase II activity.
References Jones, P., et al.: J. Biol. Chem., 274, 32008 (1999), Hassan, M., et al.: Anticancer Res., 19, 5657 (1999), Salti, G., et al.: Eur. J . Cancer, 36, 796 (2000).

Impurity Cefuroxime Sodium EP Impurity A
Stability Hygroscopic
Applications Descarbamoyl Cefuroxime (Cefuroxime Sodium EP Impurity A) is a degradation product of Cefuroxime, and an intermediate for the synthesis of Cephalosporin antibiotics
References Nomura, H., et al.: J. Med. Chem., 17, 12 (1974), Takaya, T., et al.: J. Antibiotics, 34, 1300 (1981), Wang, D., et al.: J. Pharm. Sci., 83, 577 (1994), Okamoto, Y., et al.: J. Pharm. Sci., 85, 985 (1996),

Applications Aminorex (A629200) derivative.

Applications (R,S)-Equol is a human urinary metabolite of the soy isoflavones Daidzein (D103500).
References Heinonen, S., et al.: Anal. Biochem., 274, 211 (1999), Setchell, K., et al.: J. Nutr., 132, 3577 (2002), Thigpen, J., et al.: Comp. Med., 53, 607 (2003), Yee, S., et al.: Food Chem. Toxicol., 46, 2713 (2008),

Stability Hygroscopic
Applications A metabolite of Daidzin, Daidzein and Puerarin.
References Griffiths, L., et al.: Biochem. J., 130, 141 (1972), Zhu, X., et al.: Acta Pharm. Sin., 14, 349 (1979), Powell, G., et al.: Drug Metab. Drug Interact., 6, 203 (1988), Bamforth, K., et al.: Eur. J. Pharmacol., 228, 15 (1992), Walle, T., et al.: Biochem. Pharmacol., 50, 731 (1995),

Applications N-Methyl-p-toluenesulfonamide is an intermediate used in the synthesis of vicinal haloamino ketone derivative.
References Sun, H., et al.: Chem. Biol. Drug Design, 75, 269 (2010)

Applications Labelled Torsemide (T548750). Used as a diuretic.
References Lesne, M., et al.: In. J. Clin. Pharmacol. Ther. Toxicol., 20, 382 (1982), Brater, D.C., et al.: Clin. Pharmacol. Ther., 42, 187 (1987),

Applications The main basic metabolite of Diethylpropione.
References Banci, F., et al.: Arzneim.-Forsch., 21, 1616 (1971), Mikhailova, D., et al.: Eur. J. Med. Chem., 13, 49 (1978),

Stability Hygroscopic
Applications A metabolite of Azelastine (A808250).
References Heinemann, U. et al.: J. Chrom. B Anal. Tech. Biomed. Life Sci., 793, 389 (2003); Tasaka, K., et al.: Arzneim.-Forsch., 29, 488 (1979);

Impurity Loratadine EP Impurity H
Applications N-Carbethoxy-4-piperidone (Loratadine EP Impurity H) is used in the preparation of 3-hydrazinopyridazines as antihypertensive agents as well as γ-carboline derivatives as potential serotonergic agents. N-Carbethoxy-4-piperidone is also an impurity of Loratadine (L469575).
References Schenker, E. et al.: Arsneim.-Forsch., 29, 1835 (1979); El-Kader, A. et al.: Mans. J. Pharm. Sci., 6, 1 (1989); Albu, M. et al.: J. Liq. Chrom. Rel. Technol., 32, 2569 (2009);

Applications Harman alkaloid like harmane, harmine, harmalol, harmaline obtained from Banisteriopsis caapi L. showed cytotoxicity, antimicrobial activity against Staphylococcus aureus, Escherichia coli, Proteus vulgaris and Candida albicans.
References Sigg, E.B., et al.: Arch. Int. Pharmacodyn., 149, 164 (1964), Saano, V., et al.: Acta Pharmacol. Toxicol., 51, 300 (1982), Tse, S., et al.: Biochem. Pharmacol., 42, 459 (1991), Rommelspacher, H., et al.: Eur. J. Pharmacol., 252, 51 (1994), Louis, E., et al.: Neurology, 59, 1940 (2002),

Stability Hygroscopic
Applications Disodium salt of Taurolithocholic Acid Sulfate, a metabolite of bile acids. Sulfation is a major metabolic pathway involved in the elimination and detoxification of bile acids (BAs).
References Kawamata, Y., et al.: J. Biol. Chem., 278, 9435 (2003); Alnouti, Y., et al.: Toxicol. Sci., 108, 225 (2009); Griffiths, W., et al.: J. Lipid Res., 51, 23 (2010); Huang, J., et al.: Xenobiotica, 2010, 40, 184 (2010);

Applications Azilsartan Amidoxime is an intermediate used in the preparation of azilsartan kamedoxomil for use as an angiotensin II receptor blocker. Azilsartan Impurity.
References Garaga, S., et al.: Org. Process Res. Dev., 19, 514 (2015); Sethi, M. K., et al.: Pharma Chemica, 7, 20 (2015)

Applications (R,S)-Equol 7-β-D-Glucuronide is a glucuronide metabolite of isoflavone Daidzein (D103500).
References Heinonen, S., et al.: Anal. Biochem., 274, 211 (1999), Setchell, K., et al.: J. Nutr., 132, 3577 (2002), Thigpen, J., et al.: Comp. Med., 53, 607 (2003), Yee, S., et al.: Food Chem. Toxicol., 46, 2713 (2008)

Applications 6β-Hydroxy-3α,5α-cycloandrostan-17-one is a degredation product of Dehydroepiandrosterone Sodium Sulfate (S673250), an active agent in the preparation of a pharmaceutical for the treatment of asthma or other respiratory diseases.
References Ishihara, T., et al.: Drug. Develop. Indust. Pharmacy., 5, 263 (1979); Sollman, P.B., et al.: J. Org. Chem., 28, 3559 (1963); Van Renterghem, P., et al.: Steroids., 75, 1047 (2010);

Applications Cardioselective β-adrenergic blocker. Antihypertensive; antianginal; antiarrhythmic (class II).
References Cuthbert, O.A., et al.: Br. J. Pharmacol., 43, 639 (1971), Singh, B.N., et al.: Drugs, 29, 531 (1985), Foster, R.T., et al.: Anal. Profiles Drug Subs., 19, 1 (1990),

Applications Intermediate in the preparation of Alfentanil.
References Kudzma, L., et al.: J. Med. Chem., 32, 2534 (1989),

Applications Tibolone intermediate.
References Wieland, P., et al.: Helv. Chim. Acta, 50, 1453 (1967), Funke, C.W., et al.: J. Labelled Comp. Radiopharm., 20, 843 (1983),

Impurity Cefuroxime Sodium EP Impurity E
Applications Desethyl Acetate (E)-Cefuroxime Axetil (Cefuroxime Sodium EP Impurity E) is a product from the photoisomerization of Cefuroxime Axetil (C248065), which is s widely used to treat respiratory tract infections. Antibacterial.
References Fabre, H., et. al.: J. Pharm. Sci., 83, 553 (1994); Nguyen, N., et al.: Pharm. Res., 8, 893 (1991); Stoeckel, K., et al.: Antimicrob. Agents Chemother., 42, 2602 (1998); Scott, L., et al.: Drugs, 61, 1455 (2001); Bulitta, J. B., et al.: Antimicrob. Agents Chemother., 53, 3462 (2009)

Applications The 5-hydroxy analogue of the bronchodilator, Albuterol (A514500).

Applications Labelled Cefuroxime (C248050). Antibacterial.
References O’Callaghan, C.H., et al.: Antimicrob. Agents Chemother., 9, 511 (1976), Norrby, R., et al.: J. Antimicrob. Chemother., 3, 355 (1977), Brogden, R.N., et al.: Drugs, 17, 233 (1979), Wozniak, J.R., et al.: Anal. Profiles Drug Subs., 20, 209 (1991),

Applications Labelled Tetrahydrocortisone (T293375). A normal mammalian metabolite of Cortisone (C696500).
References Schneider, et al.: J. Biol. Chem., 183, 365 (1950), Barkemeyer, et al.: Appl. Microbiol., 8, 237 (1960),

Impurity Cefuroxime Sodium Impurity B (EP)
Applications Cefuracetime is an impurity of Cefuroxime, which is an antibacterial.
References O’Callaghan, C.H., et al.: Antimicrob. Agents Chemother., 9, 511 (1976), Norrby, R., et al.: J. Antimicrob. Chemother., 3, 355 (1977), Brogden, R.N., et al.: Drugs, 17, 233 (1979), Wozniak, J.R., et al.: Anal. Profiles Drug Subs., 20, 209 (1991),

Applications m-Toluidine is a reagent that is used in the synthesis of torsemide and its derivatives which are used as a diuretic.
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package
References Lesne, M., et al.: In. J. Clin. Pharmacol. Ther. Toxicol., 20, 382 (1982), Brater, D.C., et al.: Clin. Pharmacol. Ther., 42, 187 (1987),

Impurity Ipratropium EP Impurity E
Applications N-Isopropyl Noratropine is a Noratropine derivative, an intermediate in the production of Ipratropium.
References Simms, P., et al.: J. Pharm. Biomed. Anal., 17, 841 (1998),

Applications Maintains anti-proliferative activity against human malignant cell strains.
References Pratsinis, H. et al.: J. Med. Food, 13, 286 (2010);

Stability Moisture and Temperature Sensitive
Applications (R,S)-Equol 4’-Sulfate is a sulfated metabolite of isoflavone Daidzein (D103500).
References Heinonen, S., et al.: Anal. Biochem., 274, 211 (1999), Setchell, K., et al.: J. Nutr., 132, 3577 (2002), Thigpen, J., et al.: Comp. Med., 53, 607 (2003), Yee, S., et al.: Food Chem. Toxicol., 46, 2713 (2008),

Applications A bronchodilator.
References Daly, J. W., et al.: J. Med. Chem., 9(3), 273 (1966).

Stability Hygroscopic
Applications A semi-synthetic analogue of Carminomycin with cytostatic activity.
References Mossman, T., et al.: J. Immunol. Methods, 65, 55 (1983), Janicke, R.U., et al.: J. Biol. Pharm., 273, 9357 (1998), Sidorova, T.A., et al.: J. Med. Chem., 21, 5330 (2002),

Olmesartan is a drug that belongs to the class of angiotensin II receptor antagonists. It is used for the treatment of high blood pressure, heart failure, and kidney disease. The therapeutic effect of olmesartan can be increased by concomitant use with other drugs if it is being used as a combination therapy. This drug interacts with many other drugs, including diuretics and ACE inhibitors. Drugs that are known to interact with olmesartan include furosemide, hydrochlorothiazide, amiloride, spironolactone, triamterene, chlorothiazide and quinethazone. Blood sampling is often required during therapy in order to monitor the efficacy of this drug.

Rifaximin Impurity 2 is a custom synthesis that is made to the customer's specifications. This compound is used as an impurity standard for drug product. It has a high purity and follows the pharmacopoeia standards. Rifaximin Impurity 2 is used in research and development of new drugs, which includes drug metabolism studies. This compound can be synthesized with natural or synthetic methods, and can be analyzed using HPLC.

Erythromycin impurity M is a natural, API impurity (impurity standard) that is a metabolite of erythromycin. It has been synthesized as a high purity HPLC standard to meet the requirements of pharmacopoeia and drug development. Erythromycin impurity M is an analytical reference material with CAS number 528-73-2.

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.

9-Oxo azithromycin B is a metabolite of azithromycin. It is an analytical standard for the HPLC analysis of azithromycin and its metabolites. 9-Oxo azithromycin B has been shown to bind to the ribosomes of bacteria, and inhibit protein synthesis. This drug also has antibiotic activity against Mycobacterium avium and Mycobacterium tuberculosis. 9-Oxo azithromycin B can be used in niche research or as an API impurity.br>
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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)

Risedronate sodium hydrate is a polymorphic, water-soluble salt of risedronate. It has been used in the treatment of osteoporosis and Paget's disease of bone. Risedronate sodium hydrate binds to calcium ions in the body and prevents them from being deposited in bone tissue. This drug also cross-links collagen fibers in the bone matrix, which increases mineralization and decreases the risk of fracture by strengthening the bones. The monosodium salt form of risedronate is soluble in water and is used as an analytical reagent for determining ionic strength or pH. It has been shown to inhibit ionotropic gelation, which may be due to its polyphosphoric acid content. Risedronate sodium hydrate is a polymorphic, water-soluble salt of risedronate that has been used in the treatment of osteoporosis and Paget's disease of bone. Risedronate sodium hyd

Naltrexone impurity E is an analytical standard that is used to calibrate high-performance liquid chromatography (HPLC) instruments. This substance is a natural metabolite of naltrexone, which is an opioid receptor antagonist, and has the chemical name of 4-hydroxy-3-methoxy-N-(5α,6β)-dimethyl-2-[(1R)-1-(3-methyloxetan-3-yl)piperidin-4-yl] benzeneacetamide. Naltrexone impurity E is a pharmacopoeia grade compound that can be used in the synthesis of drug products. Custom synthesis and natural or synthetic sources are available.

Clarithromycin EP Impurity K is an impurity standard for Clarithromycin in the form of a crystalline white powder. It is a synthetic compound which has been used as a drug product and as an analytical standard. This compound can be synthesized from erythromycin A, but it is not active against bacteria. Clarithromycin EP Impurity K has been shown to have metabolite properties in animals and humans, including metabolism studies with HPLC standards.