Used in research settings to quantify levels of Flavin Monooxygenase 3 (FMO3) in rat biological samples such as liver tissue homogenates, serum, or plasma. This ELISA kit enables scientists to study FMO3 enzyme expression in metabolic studies, particularly those related to drug metabolism, detoxification pathways, and trimethylaminuria (TMAU)-like conditions in rat models. It supports investigations into liver function, responses to xenobiotics, and the impact of pharmaceuticals or dietary factors on FMO3 activity. The assay is valuable for preclinical research aiming to understand interspecies metabolic differences and to assess potential drug interactions mediated by FMO enzymes.