Toxicology

Applications 4-Chloro-2-isopropyl-6-methylpyrimidine, is an intermediate used for the synthesis of some novel pyrimidine derivatives, having antifungal activities.
References Sun, L., et al.: Molecules, 16, 5618 (2011);

Applications Isotope Labelled 1-Cyclopropyl-8-ethoxy-6,7-difluoro-1,4-dihydro-4-oxo-3-quinolinecarboxylic Acid is an impurity in the synthesis of Moxifloxacin (M745000), a fluorinated quinolone antibacterial.
References Woodcock, J.M., et al.: Antimicrob. Ag. Chemother., 41, 101 (1997), Stass, H., et al.: Antimicrob. Ag. Chemother., 42, 2060 (1998)

Impurity Itraconazole EP Impurity E
Applications trans-Itraconazole (Itraconazole EP Impurity E) is a geometrical isomer of Itraconazole (I937500). It is a COVID19-related research product.
References Ahn, C., et al.: J. Korean Chem. Soc., 43, 676 (1999),

Applications Darunavir N-β-D-Glucuronide Sodium Salt (90%) is a salt analogue of Darunavir N-β-D-Glucuronide (D193510), which is a metabolite of Darunavir (D193500) an inhibitor of human immunodeficiency virus (HIV) protease. It is a COVID19-related research product.
References Vermeir, M. et al.: Drug Metab. Disp., 37, 809 (2009); Koh, Y., et al.: Antimicrob. Agents Chemother., 47, 3123 (2003); Arasteh, K., et al.: AIDS, 19, 943 (2005);