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ENVIRONMENTAL TOXICOLOGY TOOLS & SERVICESVinclozolin M2 is an active metabolite of vinclozolin (Item No. 23939).1 It is formed from vinclozolin by successive esterase activity and decarboxylation of vinclozolin in C. elegans and by decarboxylation in human liver microsomes.1,2 Vinclozolin M2 is an antagonist of the mineralocorticoid receptor (IC50 = 1,400 nM) and androgen receptor (IC50 = 0.17 nM) in reporter assays using MCF-7 cells.3
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1. Biotransformation of vinclozolin by the fungus Cunninghemella elegans. J. Agric. Food Chem. 48(12), 6138-6148 (2000).
2. In vitro phase I metabolism of vinclozolin by human liver microsomes. Xenobiotica 49(8), 895-904 (2019).
3. Steroid receptor profiling of vinclozolin and its primary metabolites. Toxicol. Appl. Pharmacol. 216(1), 44-54 (2006).