4-Methylumbelliferyl 2-sulfamino-2-deoxy-alpha-D-Glucopyranoside (sodium salt)

Description: 4-Methylumbelliferyl 2-sulfamino-2-deoxy-alpha-D-Glucopyranoside (4-MU-alpha-GlcNS) is a fluorogenic substrate of heparin sulphamidase. Heparin sulphamidase cleaves 4-MU-alpha-GlcNS to yield 4-MU-alpha-GlcNH2, which is then cleaved by alpha-glucosaminidase to release the fluorescent product 4-MU, which displays an emission maxima of 445-454 nm. The excitation maxima for 4-MU is pH-dependent: 330, 370, and 385 nm at pH 4.6, 7.4, and 10.4, respectively. 4-MU-alpha-GlcNS has been used to quantify heparin sulphamidase deficiencies associated with Mucopolisaccaridosis IIIA and other lysosomal disorders. Smiles: [Na].Cc1cc(=O)oc2cc(O[C@H]3O[C@H](CO)[C@@H](O)[C@H](O)[C@H]3NS(O)(=O)=O)ccc12