APIs for research and impurities

6-(2,4-Dichlorophenyl)-1,2,4-triazine-3,5-diamine is a metabolite that can be found in the urine and blood of humans. It has been shown to have cytotoxic effects on human lymphocytes and erythrocytes. 6-(2,4-Dichlorophenyl)-1,2,4-triazine-3,5-diamine is used as an impurity standard for HPLC analysis and as a reference compound for pharmacopoeia. This chemical is also used in the synthesis of some drugs. 6-(2,4-Dichlorophenyl)-1,2,4-triazine-3,5-diamine is not listed in any pharmacopoeia or natural product database.

Compounds containing an unfused pyridine ring in the structure, nesoi

Applications Diagnostic aid (radiopaque medium). References Bourrinet, P., et al.: Invest. Radiol., 29, 1057 (1994), Donadieu, A.-M., et al.: Acta Radiol., 37, 400 (1996),

2'-Deoxy-5,6-didehydro-2',2'-difluoro-6-hydroxyuridine is an analytical standard that is used in research and development of drugs. This compound has been designated as an impurity in a drug product. It has also been used as a reference standard for HPLC analysis. 2'-Deoxy-5,6-didehydro-2',2'-difluoro-6-hydroxyuridine is a metabolite of the drug product. This compound is not found in nature and has been synthesized artificially.

Impurity Valsartan Desvaleryl Impurity Applications An impurity in the synthesis of Valsartan (V095750). References Carini, D., et al.: J. Med. Chem., 34, 2525 (1991), Buhlmayer, P., et al.: Bioorg. Med. Chem. Lett., 4, 29 (1994),

Alloc bromoridane is a drug product that contains the active ingredient bromoridane. Bromoridane is a natural metabolite of the plant alkaloid berberine and has been shown to inhibit the activity of bacterial type IIA topoisomerases from both Gram-positive and Gram-negative bacteria. The chemical name for Alloc bromoridane is 2-[2-(4-bromobenzoyl)phenyl]dihydropyrimidine, and it has CAS number 117348-70-6. Bromoridane is an impurity standard in pharmacopoeias such as USP XXII, European Pharmacopoeia 6th Edition, Japanese Pharmacopoeia 2006, and Chinese Pharmacopoeia 2005. Alloc bromoridane is used in research and development for pharmaceuticals or as an analytical reference material.

(Z)-Fluvoxamine-EP is a drug product that is used as an analytical standard. It is a synthetic metabolite of fluvoxamine, which is a drug used for the treatment of depression. The synthesis of (Z)-fluvoxamine-EP is based on the asymmetric synthesis of fluvoxamine and the use of chiral chromatography to purify the product. This synthetic process allows for the production of high-purity (Z)-fluvoxamine-EP with a purity greater than 99%.

Applications Ketoconazole-d3 is the labeled analogue of Ketoconazole (K186000), which inhibits cytochrome P-450 dependent steps in the biosynthesis of steroid hormones in vivo. Antimetastatic and antineoplastic activity. Orally active 5-lipoxygenase and thromboxane synthase inhibitor. 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 Lambert, A., et al.: Biochem. Pharmacol., 35, 3999 (1986); Van Wauwe, J.P. and Janssen, P.A.J., J. Med. Chem., 32, 2231 (1989); Nardone, P.A., et al.: . Surg. Res., 44, 425 (1988); Tucker, W.F.G., et al.: Br. Med. J., 293, 882 (1986)

Applications Labelled Tolfenamic Acid. Non-steroidal anti-inflammatory drugs (NSAIDs). A derivative of anthranilic acid, related structurally to Mefenamic and Flufenamic acids. Anti-inflammatory, analgesic. References Pentikaeinen, P., et al.: Eur. J. Clin. Pharmacol., 19, 359 (1981), Bundscherer, A., et al.: Oncol. Rep., 19, 547 (2008), Elwood, P., et al.: Lancet, 373, 1301 (2009),