Toxicology

Applications 10-O-Acetyl SN-38-d3 is the isotope labelled protected metabolite of Irinotecan (I767500), an DNA topoisomerase inhibitor.
References Kunimoto, T., et al.: Cancer Res., 47, 5944 (1987), Shimada, Y., et al.: J. Clin. Oncol., 11, 909 (1993)

Applications Fluazifop-methyl is an intermediate in the synthesis of (±)-Fluazifop (F407430). (±)-Fluazifop is a grass-selective herbicide which inhibits acetyl-CoA carboxylase in sensitive plant species.
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 Walker, K.A., et. al.: Biochem. J., 254, 307 (1988); Hajslova, J., et. al.: J. Chrom., 438, 55 (1988)

Applications 17β-Estradiol (E888000) metabolite. An inhibitor of androstenedione aromatization, which is responsible for the conversion of androgens to estrogens. Agonistic ligands for the estrogen receptor in MCF-7 breast cancer cells.
References Numazawa, M. et al.: J. Steroid. Biochem. Mol. Biol., 96, 51 (2005); Vollmer, G. et al.: J. Seroid. Biochem. Mol. Biol., 39, 359 (1991); Brueggemeier, R. et al.: J. Steroid. Biochem., 21, 709 (1984)

Applications Coproporphyrin I Tetramethyl Ester is a methyl ester derivative of Coproporphyrin I (C685400). Coproporphyrin I Tetramethyl Ester is a nutritional requirement for the development of N. brasiliensis egg to third stage larvae. Coproporphyrin I Tetramethyl Ester is a tetrapyrrole compound excreted by Rhodobacter sphaeroides. Dyes and metabolites.
References Lida, K. et al.: Chem. Pharm. Bull., 55, 1067 (2007); Bolla, R. et al.: Comp. Biochem. Physiol. Part B, 48, 147 (1974)

Stability Moisture, Temperature Sensitive - Seal Tightly, Store in Freezer, Hygroscopic
Applications 3,3-Dibromo Cotinine is a Cotinine derivative used in the synthesis of 4,4-Ditritio-(+)-nicotine, a nicotine enantiomer binding to brain.

Applications (E)-(5,6-Dihydro-1,4,2-dioxazin-3-yl)(2-hydroxyphenyl)methanone O-Methyloxime-d4 is an intermediate used in the synthesis of Fluoxastrobin-d4 (F596702), which is labelled Fluoxastrobin (F596700). Leaf-systemic broad-spectrum fungicide for use in cereal and food crops; member of methoxy-imiodihydro-dioxazines. Agricultural fungicide.
References Milus, E., et al.: Plant Dis., 78, 697 (1994), D'Mello, J., et al.: Eur. J. Plant Pathol., 104, 745 (1998), Domijan, A., et al.: Food Addit. Contam., 22, 677 (2005),

Applications (3aα,4β,7aα)-4-(Acetyloxy)-3a,4,7,7a-tetrahydro-1H-isoindole-1,3(2H)-dione is an intermediate in the synthesis of (3aα,4β,7aα)-3a,4,7,7a-Tetrahydro-4-hydroxy-1H-isoindole-1,3(2H)-dione (T293630), which is a metabolite of Captan (C175725), a fungicide, often added to pesticide mixtures used to control diseases among fruits, vegetables.
References Kukla, D. et al.: J. Agri. Food Chem., 43, 1224 (1995); Afful, S., et al.: Res. J. App. Sci., Eng. Technol., 2, 592 (2010), Engelen, K., et al.: J. Prot. Res., 9, 4919 (2010), Lagunas-Allue, L., et al.: Anal. Bioanal. Chem., 398, 1509 (2010),

Applications 4-Bromo-2,5-dichlorophenol is a building block that has been used as a reactant in the preparation of phenoxy-nicotinamides with bile acid receptor GPBAR1 (TGR5) inhibiotory activity.
References Martin, R.E., et. al.: ChemMedChem, 8, 569 (2013)

Applications Digoxin-4’’’-O-tetra-O-acetyl β-D-Glucopyranoside is an intermediate in the synthesis of Digoxigenin Tetradigitoxoside (D446510), which is a digoxin (Dx) (D446575) impurity.
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),

Applications A nitropyridinol derivative as herbicides.
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 Buncel, E., et al.: Bioorg. Chem., 11, 43 (1982), Delarge, J., et al.: Eur. J. Med. Chem., 19, 559 (1984),

Applications 1-Cyclopropyl-8-ethoxy-6,7-difluoro-1,4-dihydro-4-oxo-3-quinolinecarboxylic Acid Ethyl Ester is used in the preparation of alkoxyquinolone antibacterial agents. Also an impurity in the synthesis of Moxifloxacin (M745000), a fluorinated quinolone antibacterial.
References Sanchez, J. et al.: J. Med. Chem., 38, 4478 (1995); Woodcock, J.M., et al.: Antimicrob. Ag. Chemother., 41, 101 (1997), Stass, H., et al.: Antimicrob. Ag. Chemother., 42, 2060 (1998)

Applications 2-(2-Formamido-4-thiazolyl)glyoxylic Acid is used as a reagent in the synthesis of cephalosporins which are a class of beta-lactam antibiotics which are active against gram-positive and potentially against gram-negative bacteria.
References Takasugi, H., et al.: J. Antibiot., 36, 846 (1983); Choi, K., et al.: J. Antibiot., 48, 1375 (1995);

Applications An intermediate in the synthesis of Amprenavir, a selective HIV protease inhibitor.

Applications Impurity of Paclitaxel analog.

Applications (S)-(-)-2-Amino-3-benzyloxy-1-propanol is used as a reagent to synthesize 15-membered macrolide antibiotics. It is also used as a reagent to synthesize oxathiazinane dioxides, compounds that exhibit antiangiogenic properties.
References Borcard, F., et al.: Bioorg. Med. Chem. Lett., 20, 5353 (2010); Sugimoto, T., et al.: Bioorg. Med. Chem., 20, 5787 (2012)

Applications 2,3,7,8-Tetrachloro-[1,4]dioxino[2,3-b:5,6-b']dipyridine is used in analytical studies for the presence and formation of dioxin-like compounds in heat-treated chlorpyrifos herbicide, a potential precursor of pyridine analog of 2,3,7,8-Tetrachloro-p-dioxin (T291370).
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 Sakiyaama, T., et al.: Organohalogen Compounds, 73, 146 (2011);