Description: | 4-Methylumbelliferyl ?-D-Glucopyranoside, a ?-D-glucoside, is a fluorogenic substrate for ?-glucosidase, utilizes to assay ?-glucosidase activity[1]. 4-Methylumbelliferyl ?-D-Glucopyranoside releases the highly fluorescent 4-methylumbelliferyl (4-MU), which has an emission maximum at 445-454 nm. The excitation maximum for 4-MU is pH-dependent: 330, 370, and 385 nm at pH 4.6, 7.4, and 10.4, respectively[2]. |