Toxicology

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)

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 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);

Applications Intermediate in the preparation of Simvastatin (S485000) analogs.

Applications Usnic Acid Sodium acts as an antibacterial and antifungal agent, and are often seen used in cosmetics and facial application chemicals.
References Ferrarese, L. et al.: Cosm. Tech. et al.: 11, 25 (2008); Coiffard, C. et al.: Annal. Pharm. Dranc., 57, 392 (1999);

Applications Potassium cyanate is used as an inhibitor to prevent sickling of erythrocytes and has potential use as a treatment for sickle-cell anemia. Potassium cyanate is also used as a reagent to carbamylate proteins.
References Cerami, A. & Manning, J.: Proc. Nat. Acad. Sci., 68, 1180 (1971); Rimon, S. & Perlmann, G.: J. Biol. Chem., 243, 3566 (1968)

Applications 3-Benzyloxy-2-(2-hydroxy-2-phenylethyl)-4H-pyran-4-one is an intermediate in the synthesis of Dolutegravir (D528800), a second generation HIV-1 integrase strand transfer inhibitor.

Applications Isotope labelled intermediate in the synthesis of the metabolites of Nitazoxanide (N490100), an anthelmintic (cestodes), antiprotozoal (cryptosporidium) agent.

Applications 6,8-Difluoro-1,4-dihydro-1-(N-methylformamido)-7-(4-methyl-1-piperazinyl)-4-oxo-3-quinolinecarboxylic Acid Ethyl Ester is an intermediate in the synthesis of Marbofloxacin (M197000), a fluorinated quinolone antibacterial agent.
References Gruet, P., et al.: Vet. Rec., 140, 199 (1977), Lefebvre, H.P., et al.: J. Vet. Pharmacol. Ther., 21, 453 (1998),

Applications Isotope labelled analogue of Thiothiamine, an impurity of Thiamine (T344185). Thiothiamine inhibits the activity of glutamate decarboxylase and decreases the concentration of GABA in brain tissue. Thiamine Impurity A;
References Koval'chuk, V.G. et al.: Tezisy Dokl.- Konf. Beloruss. Biokhim. O-va., 2, 135 (1974); Ostrovskii, Y. et al.: Biokhimiya, 34, 488 (1969);

Applications 2,6-Dichlorobenzonitrile (DCBN or dichlobenil) is a herbicide and is slightly toxic for humans. It is metabolized in the liver by the enzyme CYP2A6.
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 Li, H., et al.: Soil Sci. Soc. Am. J., 67, 122 (2003); Shedletzky, E., et al.: Plant Physiol., 94, 980 (1990)

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 Triazophos-D5 is the labeled form of Triazophos(T767595). Triazophos is an organophosphorus insecticide.
References Bhosale, B., et al.: Pestol., 33, 38 (2009), Dash, D., et al.: J. Entomol. Res., 33, 105 (2009), Hu, Y., et al.: J. Agric. Food Chem., 58, 2801 (2010),

Applications 20β-Dihydrocortisol 21-Acetate is an intermediate in the synthesis of 20β-Dihydrocortisol (D448740), which could be used as a potential non invasive diagnostic test of transmissible spongiform encephalopaties. 20β-Dihydrocortisol is a metabolite of Cortisol (H714615), a steroid hormone, more specifically a glucocorticoid, produced by the zona fasciculata of the adrenal gland. Cortisol is released in response to stress and a low level of blood glucocorticoids. Its primary functions are to increase blood sugar through gluconeogenesis; suppress the immune system; and aid in fat, protein and carbohydrate metabolism.
References Schelcher, F., et. al.: Endocrinology, 140, 2422 (1999); Phillipov, G., et. al.: J. Clin. Endocr. Metab., 81, 3855 (1996); Vigore, L., et al.: Cancer Ther., 6, 699 (2008); Puurunen, J., et al.: J. Clin. Endocrinol. Metab., 94, 1973 (2009); Lemos, D., et al.: J. Endocrinol., 201, 275 (2009); Chen, S., et al.: Am. J. Physiol., 296 (2009)

Applications ((2S,4S)-2-(Chloromethyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl)methyl 4-Methylbenzenesulfonate is an intermediate in the synthesis of Itraconazole (I937500), an orally active antimycotic structurally related to Ketoconazole. Antifungal.
References Heykants, J., et al.: Mycoses, 32, Suppl 1, 67 (1989), Sugar, A.M.,et al.: Curr. Clin. Top. Infect. Dis., 13, 74 (1993)

Applications A sulfometabolite of Moxifloxacin (M745000).
References Dalhoff, A., et al.: Drugs, 58, 239 (1999), Ahmed, S., et al.: J. Pharm. Pharmacol., 60, 55 (2008),

Applications 2-Chlorobenzhydrol is used as a reagent in the synthesis of bifonazole analogs which have antibacterial and antifungal activities. 2-Chlorobenzhydrol is also a reagent in the preparation of cinnamyl piperazine derivatives which have anticonvulsant activity.
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 El Hage, S., et al.: Arch. Pharm., 344, 402 (2011); Hu, C., et al.: Lett. Drug Des. Discov., 7, 661 (2010)