NPG (p Nitrophenyl β D Glucuronide), available in a 1g pack, is an essential reagent used for detecting glucuronidase activity in biochemical and microbiological research. The substrate, upon hydrolysis by glucuronidase enzymes, produces a yellow-colored compound that can be easily quantified, making it a critical tool for enzyme assays. NPG is commonly employed in research related to drug metabolism, liver function, and glucuronide conjugation. The 1g pack provides a larger supply for extended assays, making it ideal for high-throughput testing. This reagent is widely used in pharmaceutical and clinical laboratories for glucuronidase assays and enzyme activity studies.