Standard farmaceutici

Applications Lumichrome is a derivative of Riboflavin (R415000), a vitamin with a key role in maintaining cellular function and health in human and animals. Dyes and metabolites.
References Rajamani, S., et al.: Mol. Plant. Microbe. Interact., 21, 1184 (2008); Unna, K., et al.: J. Pharmacol. Exp. Ther., 76, 75 (1942), Rivlin, et al.: N. Engl. J. Med., 283, 463 (1970), Al-Shammary, F.J., et al.: Anal. Profiles Drug Subs., 19, 429 (1990),

Impurity Clonidine EP Impurity A
Applications 1-Acetyl-2-imidazolidinone (Clonidine EP Impurity A) is a synthetic reagent used in the preparation of triple [14C]-labelled moxonidine which is an antihypertensive compound.
References Czeskis, B., et al.: J. Labelled Comp. Radiopharm., 47, 699 (2004)

Applications 4-Nitrophenol-13C6 is an intermediate in the synthesis of labelled 4-Aminophenol (A618920). It is also a nephrotoxic metabolite of Acetaminophen (A161220) and Phenacetin (P294580) (1,2).
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 (1) Watanabe, et al.: Drug Metab. Dispos., 38, 1532 (2010)(2) Batuta, S. and Begum, N. A. Synth. Commun. 47, 137-147 (2017)

Impurity Mesalazine EP Impurity J (HCl)
Stability Hygroscopic
Applications 3,5-Diaminosalicylic acid Dihydrochloride, is the sulfate salt of 3,5-Diaminosalicylic acid. 3,5-Diaminosalicylic acid is an aromatic compound that belongs to a group of aminobenzoic acids (and derivatives) that can be used practically to prevent food spoilage and can treat animal protein aging.
References Ulrich, P., et al. Aminobenzoic Acids and Derivatives and Methods of Use for Preventing Protein Aging. US Patent 5514676. May 7 1996.

Applications 4-Hydroxy Flecainide is an analogue of Flecainide (F390000).
References Blom, Y., et al.: J. Chromatogr., 653, 138 (1993),

Impurity Valproic Acid USP Related Compound A
Applications Diallylacetic Acid (Valproic Acid USP Related Compound A), is a metabolite of Valproic Acid (V094750) as anticonvulsant agents. It can also be used for the synthesis of Velbanamine.
References Liu, H., et al.: Beilstein J. Org. Chem., 9, 983 (2013); Loscher, W., Prog. Neurobiol., 58, 31 (1999); Netzeva, T., et al.: Pharmac. Res., 17, 727 (2000);

Applications A metabolite of 13-cis-Retinoic Acid (R250000).
References Samokyszyn, V., et al.: J. Biol. Chem., 262, 14119 (1987), Oldfield, N., et al.: Drug Metabol. Dispos., 18, 1105 (1990), Samokyszyn, V., et al.: Chem. Res. Toxicol., 10, 795 (1997),

Applications Roflumilast-N-oxide is the active metabolite of Roflumilast (R639700).
References Chiba, M., et al.: Drug Metab. Dispos., 25, 1022 (1997), Jarvis, B., et al.: Drugs, 59, 891 (2000),

Applications S-Form of Dropropizine. Cough suppressive phenylpiperazine derivative. Antitussive.
References Noel, P.R.B., et al.: Arzneim.-Forsch., 19, 1246 (1969), Cartwright, K., et al.: J. Pharm. Pharmacol., 23, Suppl., 247S (1971), Moreo, GC., et al.: Gazz. Med. Ital., 140, 409 (1981),

Applications The main labelled metabolite of o-xylene.
References Gregus, Z., et al.: Drug Metab. Dispos., 26, 1082 (1998), Gregus, Z., et al.: Xenobiotica, 29, 547 (1999), Gonzalez-Reche, L., et al.: Arch. Toxicol., 77, 80 (2003),

Impurity Rosuvastatin EP Impurity B
Stability Hygroscopic
Applications A diastereomer of Rosuvastatin (R700500) used for treatment, prevention and combination therapy of lipid-related disorders. Rosuvastatin EP Impurity B

Applications A metabolite of Clomipramine.
References McTavish, D., et al.: Drugs, 39, 136 (1990), Chauret, N., et al.: Drug Metab. Dispos., 25, 1130 (1997), Gex-Fabry, M., et al.: Ther. Drug Monit., 22, 701 (2000), Herrera, D., et al.: J. Clin. Pharmacol., 40, 1488 (2000),

Stability Hygroscopic
Applications Thiamine (T344185) impurity.
References Warnock, L., et al.: Anal. Biochem., 126, 394 (1982), Royer-Morrot, J., et al.: Eur. J. Clin. Pharmacol., 42, 219 (1992),

Applications 7α-Hydroxy-4-cholesten-3-one is a metabolite of Cholesterol (C432501).
References Connor, W., et al.: J, Clin. Invest., 48, 1363 (1969), Nestel, P., et al.: Metabolism, 24, 189 (1975), Ellegard, L., et al.: Eur. J. Clin. Nutr., 45, 451 (1991), Pedersen, A., et al.: J. Lipid Res., 41, 1901 (2000),

Applications 5-(4-Fluorophenyl)-2,3-dihydro-3-(1-methylethyl)-2-oxo-N,4-diphenyl-1-[2-tetrahydro-4-hydroxy-6-oxo-2H-pyran-2-yl]ethyl]-1H-pyrrole-3-carboxamide is a photodegradation product of Atorvastatin (A791750).
References Cermola, F., et al.: Tetrahedron., 62, 7390 (2006);

Applications Antihypertensive; diuretic.
References Piala, J.J., et al.: J. Pharmacol. Exp. Ther., 134, 273 (1961), Orzech, C.E., et al.: Anal. Profiles Drug Subs., 7, 297 (1978),

Stability Hygroscopic
Applications Troglitazone Sulfate is the major metabolite of Troglitazone (T892500), a hypoglycemic agent with cholestatic effect.
References Ciaraldi, T.P., et al.: Metabolism, 39, 1056 (1990); Kuzuya, T., et al.: Diabetes Res. Clin. Pract., 11, 147 (1991); Kellerer, M., et al.: Diabetes, 43, 447 (1994); Adachi, Y., et al.: Mol. Pharmacol., 67, 923 (2005);

Impurity Propofol EP Impurity E; Propofol USP Related Compound A
Applications Dipropofol (Propofol EP Impurity E) is a dimeric derivative of Propofol (P829750). Dipropofol is an antibacterial agent with strong activity againts Gram-positive bacteria. Dipropofol also displays antioxidant and radical scavenging activity. Propofol USP Related Compound A.
References Ogata, M. et al.: Chem. Pharm. Bull., 53, 344 (2005); Ogata, M. et al.: Biol. Pharmac. Bull., 30, 1565 (2007);

Applications 2',7'-Difluorofluorescein is a reactant used in the synthesis of biarsenical probes that inhibit protein tyrosine phosphatases.
References Pomorski, A., et. al.: Org. Biomol. Chem., 13, 1395 (2015)

Applications: An impurity contained in samples of all trans-retinoic acid.
References Newton, D., et al.: Cancer Res., 40, 3413 (1980), Curley, R., et al.: Bioorg. Med. Chem. Lett., 2, 1133 (1992), Tanaka, H., et al.: Chem. Pharm. Bull., 43, 356 (1995), Patel, J., et al.: J. Med. Chem., 47, 6716 (2004),

Applications 5α-Pregnane-3β,20(S)-diol, is a metabolite of Progesterone (P755900).
References Beall, et al.: Biochem. J., 31, 35 (1937), Okuda, A., et al.: J. Biol. Chem., 259, 7519 (1984), Russell, D., et al.: Biochemistry, 31, 4737 (1992), Kondo, K., et al.: Eur. J. Biochem., 219, 357 (1994), Westerbacka, J., et al.: J. Clin. Endocrinol. Metab., 88, 4924 (2003),

Applications Impurity of Bivalirudin, a direct thrombin inhibitor acting as an anticoagulant through inhibition of the enzyme thrombin.
References Bertrand, O. et al.: Am. J. Cardio., 110, 599 (2012); Patti, G. et al.: Am. J. Cardio., 110, 478 (2012);

Applications A metabolite of Acepromazine (A130900).
References Cossum, P., et al.: Drug Dispos., 9, 321 (1988), Stowell, L., et al.: J. Anal. Toxicol., 22, 166 (1998),

Applications 7-Bromobenz[a]anthracene (cas# 32795-84-9) is a useful research chemical.

Applications A metabolite of Mifepristone (M343975).
References Ringler, I., et al.: Metabolism, 13, 37 (1964), Gagne, D., et al.: J. Steroid. Biochem., 25, 315 (1986), Jang, G., et al.: Biochem. Pharmacol., 52, 753 (1996), Hild, S., et al.: Hum. Reprod., 15, 822 (2000), Gainer, E., et al.: Steroids, 68, 1005 (2003),

Impurity Irbesartan Dibromomethyl Impurity
Applications A di-substituted biphenol derivative.

Applications A degradation and metabolic intermediate of Betamethasone (B3270000).

Applications Labelled Indoleacetic Acid (I577343) has the potential to be used in anti-cancer therapy in conjunction with horseradish peroxidase (HRP).
References Kawano, T. et al.: Gen. Hypo. 60, 664 (2003);

Applications 1,2-Benzenedicarboxylic Acid Di-C6,8,10-alkyl Esters_x000D_(1:1:1 Mixture of D446490 and D481750 and D439395, by weight) (cas# 68515-51-5) is a compound useful in organic synthesis.

Applications Linagliptin is a novel potent and selective dipeptidyl peptidase-4 (DPP-4) inhibitor with potential use in the treatment of type 2 diabetes.
References Prabavathy, N. et al.: Int. J. Pharm. Bio. Sci., 2, 438 (2011); Deacon, C.F.: Diab. Obes. Metab., 13, 7 (2011);

Applications 1,8-Dibromoanthracene (cas# 131276-24-9) is a useful research chemical.

Applications 1,2-Dihydroxynaphthalene 574-00-5 (cas# 574-00-5) is a useful research chemical.

Applications A metabolite of Cholesterol.
References Connor, W., et al.: J, Clin. Invest., 48, 1363 (1969), Nestel, P., et al.: Metabolism, 24, 189 (1975), Ellegard, L., et al.: Eur. J. Clin. Nutr., 45, 451 (1991), Pedersen, A., et al.: J. Lipid Res., 41, 1901 (2000),

Stability Hygroscopic
Applications A metabolite of Digoxin (Dx) (D446575).
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 Fujii, Y., et al.: Clin. Chem., 37, 476 (1991), Salphati, L., et al.: Xenobiotica, 29, 171 (1999), Song, S., et al.: Drug Metab. Dispos., 27, 689 (1999),

Impurity Rosuvastatin EP Impurity F
Applications (4R,6S)-6-[(1E)-2-[4-(4-Fluorophenyl)-6-(1-methylethyl)-2-[methyl(methylsulfonyl)amino]-5-pyrimidinyl]ethenyl]-2,2-dimethyl-1,3-dioxane-4-acetic Acid 1,1-Dimethylethyl Ester (Rosuvastatin EP Impurity F) is a Rosuvastatin (R700500) intermediate as HMG-CoA reductase inhibitor.
References Beck, et al.: J. Med. Chem., 33, 52 (1999),

Applications A labelled dopaminergic neurotoxin; a selective cytostatic agent in small-cell lung cancer cell lines with neuroendocrine properties.
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 Marini, A.M. et al.: J, Nat. Cancer Inst., 84, 1582 (1992); Singh, M. et al.: Arch. Biochem. Biophys., 286, 138 (1991); Santiago, M. et al.: J. Neurosci. Meth., 108, 181 (2001);

Applications Dabigatran Carboxamide Ethyl Ester is an impurity of Dabigatran Etexilate Mesylate (D100150) which is a nonpeptide, direct thrombin inhibitor.
References Hauel, N., et al.: J. Med. Chem., 45, 1757 (2002); Mungall, D., et al.: Curr. Opin. Invest. Drugs, 3, 095 (2002); Stangier, J., et al.: J. Clin. Pharmacol., 45, 555 (2005)