Used in research to quantify UDP-glucuronosyltransferase 1A9 enzyme levels in rat biological samples. Helps in studying drug metabolism, particularly in the liver, where UGT1A9 plays a key role in the glucuronidation of various xenobiotics and endogenous compounds. Enables assessment of enzyme induction or inhibition during drug development and toxicology studies. Supports investigation into metabolic pathways and potential drug-drug interactions in preclinical research.