Toxicology

Stability Hygroscopic
Applications Labelled Gemcitabine, an antineoplastic.
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),

Applications A potent, direct, selective, and orally active inhibitor of coagulation factor Xa. It is a potential new oral coagulant that may be useful prevention of venous thromboembolism in total hip, knee replacement orthopedic surgery and stroke in treatment of patient with venous thromboembolic disorder or with atrial fibrillation.
References Luettgen, J. M., et al.: J. Enz. Inhib. Med. Chem., 26, 514 (2011); Glanis, T., et al.: J. Thromb. Thrombol., 31, 310 (2011); Barrett, Y. C., et al.: Thromb. Haemos., 105, 181 (2011);

Applications Isotope labelled 2-Toluidine (T536205) is a carcinogenic and toxic aromatic amine and is a potential bladder cancer risk, surmised from urine assessment and analysis (1). It is contained in hair dye, henna and dyed hair samples (2,3). Possible mutagen (4). Drinking water contaminant candidate list 3 (CCL 3) compound as per United States Environmental Protection Agency (EPA), environmental, and food contaminants.
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. El-Bayoumy, K. et al.: Cancer Res. 1986 Dec;46(12 Pt 1):6064-7.2. Turesky R. et al.: Chem. Res. Toxicol. 2003 Sep;16(9):1162-73.3. Andrew, A. et al.: Int. J. Cancer. 2004 Apr 20;109(4):581-6.4. Kirkland, D. et al.: Mutat. Res. 2005 Dec 30;588(2):88-105.

Applications O-Ethyl O-Phenyl S-Propyl Phosphorothioate is an organophosphates pesticide/insecticide. A pesticide in herbal medicines.
References Nie, C., et al.: Jingxi Huagong Zhongjianti, 38, 59 (2008); Bi, F., et al.: Huaxue Gongye Yu Gongcheng, 18, 156 (2001); Ivashina, S. A.: Gigiena i Sanitariya, 11, 76 (1984)

Applications Acetoacetyl-CoA is a derivative of CoA (C636400). In the mevalonate pathway, Acetoacetyl-CoA is a precursor of HMG-CoA (H456365), and a precursor of poly-beta-hydroxybutyrate.
References Okamura, E., et al.: Proc. Natl. Acad. Sci. U. S. A., 107, 11265 (2010)

Applications Hexaflumuron is an benzoylphenylurea based chitin synthesis inhibitor used against Ephestia figulilella.
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 Sun, C.X., et al.: Bull. Environ. Contamin. Toxicol., 89, 868 (2012); Khajepour, S., et al.: J. Insect. Sci., 12, 102 (2012);

Applications Ametryn is a methylthiotriazine based herbicide which inhibits photosynthesis and other enzymatic processes. Ametryn is used to control broadleaf weeds and annual grasses in pineapple, sugarcane and bananas.
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 Kasozi, G.N. et al.: Environ. Pollut., 169, 12 (2012); Megersa, N., et al.: 29, 789 (2012)

Applications Isotope Labelled analogue of Erythritol, a sugar alcohol used as a food additive.
References Leisso, R., et al.: J. Agr. Food. Chem., 61, 1373 (2013); Hillmann, H., et al.: J. Agr. Food. Chem., 60, 9974 (2012);

Applications Eslicarbazepine acetate, (BIA 2-093), is a promising antiepileptic drug structurally related to Carbamazepine and Oxcarbazepine. Neuroprotective & Neuroresearch product.
References Benes, J., et al.: J. Med. Chem., 42, 2582 (1999), Tong, X., et al.: Br. J. Pharmacol., 133, 867 (2001), Almeida, L., et al.: J. Clin. Pharmacol., 45, 1062 (2005), Elger, C., et al.: Epilepsia, 48, 497 (2007),

Applications A nonsedating type histamine H1-receptor antagonist. Antihistaminic.
References Vincent, J., et al.: Brit. J. Clin. Pharmacol., 26, 497 (1988)

Applications Estrogenic mycotoxin produced by Fusarium fungi commonly found in grains. One of a group of compounds known as resorcylic acid lactones.Environmental contaminants; Food contaminants
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 Tanaka, T., et al.: J. Agric. Food Chem., 36, 979 (1988), Hamilton, S., et al.: Anticancer Res., 16, 3597 (1996), Hecht, S., et al.: Cancer Lett., 150, 49 (2000), Hussein, H., et al.: Toxicology, 167, 101 (2001), Lim, H., et al.: J. Immunol., 175, 4180 (2005),

Applications A metabolite of Fulvestrant (F862500).
References Rao, P., et al.: J. Steroid Biochem., 25, 417 (1986), Wakeling, A., et al.: J. Steroid Biochem. Mol. Biol., 43, 173 (1992), DeFriend, D., et al.: Cancer Res., 54, 408 (1994),

Impurity Nicardipine USP Related Compound B
Applications A pyridine metabolite M-5 of Nicardipine. Nicardipine USP Related Compound B.
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 Triggle, A., et al.: J. Med. Chem., 23, 1442 (1980), Freedman, D., et al.: Drugs, 34, 578 (1987), Guengerich, F., et al.: Xenobiotica, 25, 689 (1995), Schleifer, K., et al.: Pharmazie, 54, 804 (1999),

Applications Clocortolone Acetate is an intermediate in the synthesis of Clocortolone (C583800), an corticosteroid used in the treatment of skin inflammmation and other skin conditions arising for dermatoses.
References Rehm, K. et al.: Pharmaz. Zeit., 127, 888 (1982);

Applications 6-Oxo Simvastatin is an analog of Simvastatin (S485000), a HMG-CoA reductase inhibitor.
References Joshua, H., et al.: J. Antibiot., 44, 366 (1991),

Applications A degradation and metabolic intermediate of Dexamethasone (D298800). A Dexamethasone enol aldehyde as inflammation inhibitor.
References Weiss, G., et al.: J. Clin. Endocrinol. Metab., 43, 696 (1976), Hirschmann R., et al.: Steroids, 57, 579 (1992),

Applications A metabolite of Baclofen (c).
References Ault, B., et al.: Eur. J. Pharmacol., 71, 357 (1981),

Applications 19-Norandrosterone is the oxidized byproduct of Nandrolone (N315000), an anabolic steroid that is present naturally in the human body.
References Jiang, J.Q., et al.: J. Food. Sci., 77, 63 (2012); Delgadillo, M.A., et al.: J. Chromatograph. Anal. Technol. Biomed. Life. Sci., 897 (2012);

Applications A metabolic intermediate in nucleic acid metabolism.
References Yoon, K., et al.: Nat. Prod. Sci., 14, 254 (2008), Ramazzina, I., et al.: J. Biol. Chem., 283, 23295 (2008), Kim, K., et al.: J. Mol. Biol., 387, 1067 (2009),

Applications Oxyphenisatin Diacetate is the pro-drug of Oxyphenisatin (O876965). Results confirm that Oxyphenisatin Diacetate inhibits the growth of breast cancer cell lines MCF7, T47D, HS578T, and MDA-MB-468.
References Morrison, B.L., et al.: Cancer Med., 2, 687-700 (2013);

Applications Trestolone acetate is a derivative of Trestolone (T719600), a synthetic androgen used as a potential hormonal male contraceptive method that induces a state of temporary infertility.
References Garcia-Becerra, R., et al.: Reproduction., 143, 211 (2012); Attardi, B.J., et al.: J. Steroid. Biochem. Molec. Biol., 122, 212 (2010)

Impurity Ambroxol EP Impurity B Hydrochloride
Stability Hygroscopic
Applications Ambroxol Cyclic Impurity is a metabolite as well as an impurity of the bronchosecretolytic drug, Ambroxol (A575900).
References Hammer, R. et al.: Arzneim.-Forsch., 28, 899 (1978); Nieder, M. et al.: HRC & CC, 9, 561 (1986); Huq, F. et al.: J. Pharmacol. Toxicol., 3, 147 (2008);

Stability Hygroscopic
Applications The optically active isomer of Carvedilol (C184625), a nonselective ß-adrenergic blocker with a1-blocking activity. An antihypertensive used in the treatment of congestive heart failure.
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 Hirohashi, M., et al.: Arzneim.-Forsch., 40, 735 (1990),

Applications Elenolic Acid is an antiviral agent that inhibits reverse transcriptases, inhibited the growth of chicken embryo fibroblast cells as well as Escherichia coli and Bacillus subtilis strains.
References Heinze, J.E., et al.: Antimicrob. Agents Chemother., 8, 421 (1975); Renis, H,E..: Antimicrob. Agents Chemother., 8, 149 (1975)

Applications Cholesteryl Acetate Dibromide is an brominated intermediate in the synthesis of Cholesterol (C432501) derivatives.
References Kandutsch, A.A., et al.: J. Biol. Chem., 249, 6057 (1974);

Applications An antiarrhythmic agent isolated from Rauwolfia serpentina.
References Galarreta, B., et al.: Bioorg. Med. Chem., 16, 6689 (2008), Sun, L., et al.: Plant Mol. Biol., 67, 455 (2008), Ruiz-May, E., et al.: Mol. Biotechnol., 41, 278 (2009),

Stability Hygroscopic
Applications Gentiopicroside is an anticonvulsant agent present in plant extracts.
References Mahendran, G. et al.: Biomed. Res. Int., 2015, 542385 (2014);

Stability Hygroscopic, Temperature Sensitive
Applications Gemcitabine Triphosphate is a phosphorylated metabolite of Gemcitabine (G305000), an antineoplastic agent.
References Kennedy., E.P., et al.: J. Biol. Chem., 222, 193 (1956),

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

Applications A labelled antihypertensive. An angiotensin converting enzyme (ACE) inhibitor, converted to active, diacid metabolite.
References Teetz, V., et al.: Arzneim.-Forsch., 34, 1399 (1984), Ruggenenti, P., et al.: Lancet, 352, (1998), Bosch, J., et al.: Br. Med. J., 324, 1 (2002),

Stability Hygroscopic
Applications Pravastatin Lactone is a metabolite of Pravastatin (P702000).
References Boberg, M., et al.: Drug Metab. Dispos., 25, 321 (1997), Neuvonen, P., et al.: Clin. Pharmacol. Ther., 63, 332 (1998), Boyd, R., et al.: J. Clin. Pharmacol., 40, 91 (2000),

Impurity Norethindrone Acetate EP Impurity F
Applications 6β-Hydroxy Norethindrone Acetate (Norethindrone Acetate EP Impurity F) is an oxidative product of the drug Norethindrone (N676000). Norethindrone impurity.
References Reif, V., et al.: Pharmaceutical Res., 4, 54 (1987), Rao, P., et al.: Steroids, 59, 621 (1994),

Applications 2-[3-(Aminosulfonyl)-4-chlorobenzoyl]-benzonic Acid is a potential metabolite of Chlorthalidone.
References Salado C., et al.: J. Chromatography. Biomed. App., 690, 195 (1997);

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),

Stability Light Sensitive, Temperature Sensitive
Applications A metabolite of Vitamin A (R252000(M)).
References Touma, S., et al.: Biochem. Pharmacol., 78, 1127 (2009), Muniz, A., et al.: Biochem., 48, 6854 (2009), Guignard, T., et al.: J. Biol. Chem., 285, 18759 (2010),

Applications An enantiomeric impurity of Ezetimibe (E975005), an antihyperlipoproteinemic and cholesterol absorption inhibitor.

Applications Methyl Lithocholate is an derivative of Lithocholic Acid (L469180),a cholic acid derivative as TGR5 modulator. Found in ox bile, human bile, rabbit bile, and in ox and pig gallstones.
References Roleira, F.M., et al.: Lett. Drug. Design. Discovery., 7, 610 (2010);

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);

Applications Labelled Ouabain (O714500). A cardiac glycoside that inhibits Na(+)/K(+) ATPase. It regulates transcription of MDR (increase, Pgp) and MRP (increase MRP1 and decrease CFTR, cyctic fibrosis transport receptor or cAMP-activated Cl- channel) genes, also alters localization of MRP1.
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 Padilha, A.S. et al.: Clin. Exp. Pharmacol. Physiol., 35, 801 (2008); Blaustein, M.P. et al.: Clin. Exp. Hypertens. 20, 691 (1998); van Huysse, J.W. et al.: Clin. Exp. Hypertens. 20, 657 (1998);

Applications Ethyl Deoxycholate is the ethyl ester of the common bile salt Deoxycholic Acid (D232645), a Cholic Acid (C432600) derivative used as a component in cell lysis buffers.
References Tuangtong, R. et al.: Dermatol. Surg., 36, 899 (2010); Araki, Y. et al.: Scand. J. Gast., 36, 533 (2001);

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),

Impurity Atorvastatin EP Impurity G
Applications Atorvastatin derivative.

Stability Hygroscopic
Applications Rosuvastatin tert-Butyl Ester, is a metabolite of Rosuvastatin (R700500) a selective, competitive HMG-CoA reductase inhibitor.
References Watanabe, M., et al.: Bioorg. Med. Chem., 5, 437 (1997), Lee, E., et al.: Clin. Pharmacol. Ther., 78, 330 (2005), Ferdinand, K.C., et al.: Am. J. Cardiol., 97, 229 (2006),

Impurity Tranexamic EP Impurity A
Applications Tranexamic Acid Dimer (Tranexamic EP Impurity A) is a Tranexamic Acid (T714505) impurity.

Applications Diazoxide-d3 is the labeled analogue of Diazoxide (D417305), which reduces status epilepticus neuron damage in diabetes.
References Baba, A., et al.: J. Neurosci., 23, 7737 (2003); Bancila, V., et al.: J. Neurochem., 90, 1243 (2004); Bancila, V., et al.: J. Biol. Chem., 280, 8793 (2005)

Applications A non-steroidal anti-inflammatory ophthalmic agent.
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 Mathur, K., et al.: Bioorg. Med. Chem., 11, 1915 (2003), Zhao, M., et al.: Bioorg. Med. Chem., 15, 2815 (2007), Roy, K., et al.: Eur. J. Med. Chem., 44, 2913 (2009),

Applications Telocinobufagin is isolated as a major component from skin secretion of the toad Bufo rubescens. Telocinobufogenin is a novel antibiotic cardiotonic.
References Akizawa, T., et al.: Chem. Pharm. Bull., 42, 754 (1994); Hancock, R., et al.: Antimicrob. Agents Chemother., 43, 1317 (1999); Jing, Y., et al.: J. Cancer Res., 85, 645 (1994); Kamano, Y., et al.: J. Med. Chem., 45, 5440 (2002); Schoner, W., et al.: Eur. J. Biochem., 269, 2440 (2002); Cunha Filho, G., et al.: Toxicon, 45, 777 (2005)

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

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

Applications A dextrorotatory stereoizomer of Quinine. Antiarrhythmic (class IA). Antimalarial.
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 Loutfy, M.A., et al.: Anal. Profiles Drug Subs., 12, 483 (1983), Mason, J. W., et al.: Ann. N. Y. Acad. Sci., 432, 162 (1984),

Stability Hygroscopic
Applications A degradation product of Betamethasone (B327000).
References Andersson, P., et al.: J. Pharm. Pharmacol., 36, 763 (1984), Wurthwein, G., et al.: Biopharm. Drug Dispos., 11, 381 (1990), Samtani, M., et al.: J. Pharm. Sci., 93, 726 (2004), Samtani, M., et al.: Drug Metab. Dispos., 33, 1124 (2005),

Applications Metabolite of 5α-Androst-16-en-3β-ol
References Gower, D., et al.: J. Steroid Biochem. Mol. Biol., 63, 81 (1997), Zorko, M., et al.: Steroids, 65, 46 (2000), Diel, P., et al.: Toxicol. Lett., 169, 64 (2007),

Applications The (S)-isomer of Viloxazine (V312440). Antidepressant.
References Howe, R., et al.: J. Med. Chem., 19, 1074 (1976), Pinder, R.M., et al.: Drugs, 13, 401 (1977),

Applications Pipamazine is a drug od the phenothiazine class which used to be used as an antiemetic.
References Bhargava, K. et al.: Br. J. Pharmacol. Chemother., 22, 154 (1964); Bhargava, K. et al.: Br. J. Pharmacol. Chemother., 21, 436 (1963);

Applications A metabolite of Desogestrel.
References Back, D., et al.: Br. J. Clin. Pharmacol., 26, 23 (1988), Wienkers, L., et al.: Drug Metab. Dispos., 1990, 24, 610 (1990), Bourrie, M., et al.: J. Pharmacol. Exp. Ther., 277, 321 (1996), Ono, S., et al.: Xenobiotica, 26, 681 (1996),

Applications Cyclofenil is a weak nonsteroidal estrogen with ovulation induction properties. Mammalian hormone.
References Miquel, et al.: J. Med. Chem., 6, 774 (1963),

Stability Hygroscopic
Applications Glycocholic Acid Sodium Salt is a biochemical formed by the conjugation of cholic acid (C432600) with glycine (G615990).
References Monalisa, M., et al.: Langmuir, 27 (2011);

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)

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 Verapamil EP Impurity J HCl
Applications Nor Verapamil Hydrochloride (Verapamil EP Impurity J HCl) is a metabolite of Verapamil.
References Mutlib, A.E., et al.: The Journal of Pharm. & Exp. Therapeutics, 252, 2, 593 (1989)

Stability Light Sensitive
Applications A metabolite of Letrozole.
References Koyama, E., et al.: Ther. Drug Monit., 15, 224 (1993), Pfister, C., et al.: J. Pharm. Sci., 83, 520 (1994), Vander H.Y., et al.: J. Pharm. Biomed. Anal., 24, 723 (2001), Cohen, M., et al.: Clin. Cancer Res., 8, 665 (2002),

Applications Atorvastatin Derivative

Applications Protected Atorvastatin.

Applications Forsythoside A is used as an antiinflammatory agent in traditional Chinese medicine.
References Li, H. et al.: Phytother. Res., 25, 338 (2011);

Applications Elagolix Sodium is a novel uracil phenylethylamine that acts as potent human gonadotropin-​releasing hormone receptor (hGnRH-​R) antagonist.
References Chen, C. et al.: J. Med. Chem., 51, 7478 (2008);

Stability Hygroscopic
Applications The optically active isomer of Carvedilol (C184625), a nonselective ß-adrenergic blocker with a1-blocking activity. An antihypertensive used in the treatment of congestive heart failure.
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 Hirohashi, M., et al.: Arzneim.-Forsch., 40, 735 (1990),

Applications A serotonin 5-HT2A receptor antagonist. Used as potential controls in various biological studies.
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 Wong, D.F., et al.: Science, 226, 1393 (1984), Blin, J., et al.: Eur. J. Pharmacol., 147, 73 (1988), Kehne, J.H., et al.: J. Pharmacol. Exp. Ther., 277, 968 (1996),

Stability Hygroscopic
Applications A nucleoside analog phosphates for topical use in the treatment of herpes virus infections. A topical treatment that seems to bypass a key mechanism responsible for resistance to Acyclovir.
References Furman, P., et al.: J. Virol., 32, 72 (1979), Darby, G., et al.: J. Gen. Virol., 48, 451 (1980),Prisbe, E., et al.: J. Med. Chem., 29, 671 (1986), Ellis, M., et al.: Antimicrob. Agents Chemother., 33, 304 (1989),

Applications A labelled antihypertensive. An angiotensin converting enzyme (ACE) inhibitor, converted to active, diacid metabolite.
References Teetz, V., et al.: Arzneim.-Forsch., 34, 1399 (1984), Ruggenenti, P., et al.: Lancet, 352, (1998), Bosch, J., et al.: Br. Med. J., 324, 1 (2002),

Applications The erythro isomers have been shown to exhibit very little therapeutic effect and contribute mainly to the toxic hypertensive effects of this drug.Controlled substance.
References Greenblatt, E.N., et al.: J. Pharmacol. Exp. Ther., 131, 115 (1961), Padmanabhan, G.R., et al.: Anal. Profiles Drug Subs., 10, 473 (1981), Kuczenski, R., et al.: J. Pharmacol. Exp. Ther., 296, 876 (2001), Pelham, W.E., et al.: J. Consult. Clin. Psychol., 61, 506 (1993), Srinivas, N.R., et al.: Pharm. Res., 10, 14 (1993),

Applications A metabolite of Norfloxacin (N681000).
References Uno, T., et al.: J. Med. Chem., 33, 2929 (1990),