MUG (4 Methylumbelliferyl β D glucuronide Trihydrate) is a highly sensitive reagent used in biochemical analysis, specifically designed for detecting glucuronidase activity in biological samples. It is a colorimetric substrate that, when hydrolyzed by glucuronidase enzymes, produces a fluorescent product that can be quantified. This makes MUG an essential tool for monitoring enzyme activity in various assays, including research on liver function and gastrointestinal health. The 25g pack ensures ample supply for repeated testing, providing excellent value for laboratories conducting high-throughput screenings or enzymatic assays. It is a key reagent for studies in enzymology and microbial analysis.