Pharmaceutical Standards

Applications Labelled 3-(3,4-Dimethoxyphenyl)propanoic Acid (D460730), one of the novel circulating coffee metabolites in human plasma.
References Clifford, M., et al.: J. Sci. Food Agric., 80, 1033 (2000), Mateos, R., et al.: J. Agric. Food Chem., 54, 8724 (2006), Wong, C., et al.: J. Nutr. Biochem., 21, 1060 (2010),

Applications Aluminum Glycinate is an antacid which is used in the treatment of peptic ulceration. It is used in the development of a transdermal hydrogel patch for ferulic acid to treat skin damage induced by UV radiation.
References Rice, M., et al.: Am. J. Gastroenterol., 25, 74 (1956); Bai, J., et al.: Pak. J. Pharm Sci., 27, 369 (2014);

Applications Rosuvastatin Methyl Ester is an impurity of Rosuvastatin (R700500) in the pharmaceutical dosage forms under forced degradation conditions.
References Lennernas, H., et al.: Clin. Pharmacokinet., 32, 403 (1997), Kivisto, K., et al.: Br. J. Clin. Pharmacol., 46, 49 (1998), Lan, K., et al.: J. Pharm. Biomed. Anal., 44, 540 (2007),

Applications (+)-Pinanediol-2-O-(hydrogen Sulfate) is a reactant used in studies on formation of organosulfates from reactive uptake of monoterpene oxides on neutral and acidic sulfate particles.
References Iinuma, Y., et al.: Phys. Chem. Chem. Phys., 11, 7985 (2009);

Applications Dihydronaftazone-d4 O-β-D-Glucuronide is labelled Dihydronaftazone O-β-D-Glucuronide (D450330) which is a metabolite of Naftazone (N359270) which is a novel anti-anflammatory agent as well as an anti-proliferative agent due to its 1,2-napthoquinone substructure.
References Marrero-Ponce, Y. et al.: Eur. J. Med. Chem., 46, 5736 (2011)

Stability Hygroscopic
Applications Atorvastatin (A791750) impurity.
References Kearney, A.S., et al.: Pharm. Res., 10, 1461 (1993); Heinonen, T.M., et al.: Clin. Ther., 18, 853 (1996);

Applications (S)-1-Amino-3-chloro-2-propanol Hydrochloride is used in biological studies as an orally active male antifertility agent which is mediated by an effect on epididymal and vas deferens sperm.
References Coppola, J. A., et al.: Contraception, 9, 459 (1974);

Applications Cloticasone is an intermediate in the synthesis of Fluticasone Propionate.
References Meltzer, E.O., et al.: J. Allergy Clin. Immunol., 86, 221 (1990), Mitchison, H.C., et al.: Gut, 32, 260 (1991), Phillipps, G.H., et al.: J. Med. Chem., 37, 3717 (1994)

Applications 2,4-Bis(trimethylsilyl)cytosine is an intermediate used in the synthesis of 1’-Epi Gemcitabine Hydrochloride (E588510), which is an α-Anomer of Gemcitabine.
References Hertel, L.W., et al.: Cancer Res., 50, 4417 (1990), Abbruzzese, J.L., et al.: J. Clin. Oncol., 9, 491 (1991), Ruiz, V.W.T., et al.: Biochem. Pharmacol., 46, 762 (1993),

Stability Hygroscopic, Moisture Sensitive
Applications 1-​[1-​(4-​Chlorobenzoyl)​-​5-​hydroxy-​2-​methyl-​1H-​indole-​3-​acetate]β-​D-​Glucopyranuronic Acid is an analog of Indomethacin Acyl-β-D-glucuronide a metabolite of Indomethacin (I641000). Acyl glucuronides have been implicated in the toxicity of many xenobiotics and marketed drugs.
References Abid, A., et al.: Biochem. Pharmacol., 50, 557 (1995), Gamage, N., et al.: Toxicol. Sci., 90, 5 (2006), Cerveny, L., et al.: Drug Metab. Dispos., 35, 1032 (2007), Hayeshi, R., et al.: Eur. J. Pharm. Sci., 35, 383 (2008),

Applications (3R,5S)-5-(6-Cyclopropyl-10-fluoro-7,8-dihydrobenzo[k]phenanthridin-8-yl)-3,5-dihydroxypentanoic Acid Sodium Salt is an impurity of Pitavastatin (P531000), a competitive inhibitor of HMG-CoA reductase. Antilipemic.
References Aoki, T., et al.: Arzneim.-Forsch., 47, 904 (1997); Yamada, I., et al.: Xenobiotica, 33, 789 (2003); Park, S., et al.: Clin. Ther., 27, 1074 (2005)

Stability Light Sensitive, Temperature Sensitive
Applications An anlogue of β-Carotene (C184250). Decapreno-β-carotene is used as an internal standard for the quantification of the hydrocarbon carotenoids by HPLC.
References Hemley, R., et al.: Biophysical J., 20, 377 (1977), Taylor, R.F, et al.: Methods Enzymol., 67, 233 (1980),

Applications Used in the preparation of Epostane (E588850).

Impurity Atorvastatin 2-Hydroxy Lactone
Stability Hygroscopic
Applications A metabolite of Atorvastatin, a selective, competitive HMG-CoA reductase inhibitor. Atorvastatin is the only drug in its class specfically indicated for lowering both elevated LDL-cholesterol and triglycerides in patients with hypercholesterolemia.