Pharmaceutical Standards

Applications N-Desmethyl Regorafenib (Pyridine)-N-oxide-d3 is the isotope labelled analog of N-Desmethyl Regorafenib (Pyridine)-N-oxide (D293280); a synthetic metabolite of Regorafenib (R143000) used for treatment and prevention of cancer.
References Wilhelm, S.: PCT Int. Appl. WO 2011130728 A1 20111020. Oct 20, 2011

Stability Hygroscopic
Applications Nicotine-N-(4-deoxy-4,5-didehydro)-β-D-glucuronide is a possible metabolite of Nicotine (N412420).
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package

Applications Tetrahydrocortisol 21-O-(1-Ethoxy Ethyl) Ether-d6 is an isotope labelled intermediate in the synthesis of Tetrahydro Cortisone-d6 (T293377), which is 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),

Applications A Nicotine metabolite. Carcinogen.

Applications Asomate is an organoarsenic fungicide used for various agricultural goods. Research has shown that arsenic pollution manifested permanently and extensively when asomate was used continuously in apple orchard.
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 Zhao, Z.Y., et al.: Xuanyi. Xueboa., 34, 117 (2007); Kim, N., et al.: Food. Sci. Biotechnol., 14, 554 (2005);

Stability Hygroscopic
Applications 2-Chloroethyl benzoate (cas# 939-55-9) is a useful research chemical.

Applications Methyl (2E)-[2-(chloromethyl)phenyl)](methoxyimino)acetate is an impurity from the pesticide active ingredient, Trifloxystrobin, a broad-spectrum foliar fungicide used in plant pritection.
References Margot, P. et al.: Bright. Crop Prot. Conf. Pest Dis., 2, 375 (1998); Karadimos, D.A. et al.: Crop Prot., 24, 23 (2005); Prom, L.K. et al.: Plant Dis., 87, 252 (2003);

Applications 4-(2-Fluoro-4-nitrophenyl)morpholine is a reactant in the synthesis of 5-​substituted oxazolidinone derivatives with high antimicrobial activity.
References De Rosa, M., et. al.: Eur. J. Med. Chem., 69, 779 (2013)

Applications (S)-7,8-Dihydroxy Efavirenz is a metabolite of (S)-Efavirenz (E425000); a nonnucleoside HIV-1 reverse transcriptase inhibitor.
References Young, S. D., et al.: Antimicrob. Ag. Chemother., 39, 2602 (1995); Deng, Y., et al.: J. Sep. Sci., 38, 1529 (2015)

Applications 2,7-Dibutylnaphthalene is an intermediate in the synthesis of 3,6-Dibutyl-1-naphthalenesulfonic Acid Sodium Salt (D429485), which may be used as a coloring agent.

Stability Hygroscopic
Applications 25-​Cyclohexyl-​4'-​O-​de(2,​6-​dideoxy-​3-​O-​methyl-​α-​L-​arabino-​hexopyranosyl)​-​5-​demethoxy-​25-​de(1-​methylpropyl)​-​5-​oxo-avermectin A1a is an intermediate in synthesizing 22,23-Didehydro Selamectin (D439445), an impurity of Selamectin (S247990) which is a topical parasiticide. Selamectin (S247990) is also used as a veterinary antihelminithic agent on animals.
References Eshar, D., et al.: J. Am. Veterin. Med. Association., 241, 1056 (2012); Geis-Asteggiante, L., et al.: J. Chromatograph., 1258, 43 (2012)

Applications Labelled analogue of Fenthion Sulfoxide, the sulfoxide anlogue and metabolite of the organothiophosphate insecticide Fenthion (F278000).
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 Wallnoefer, P. et al.: Pflanzensch.-Nach., 29, 236 (1976); Minelli, E.V. et al.: J. Agric. Food. Chem., 44, 936 (1996);