4-甲基伞形酮基β-D-半乳糖吡喃糖苷-6硫酸钠盐用于测定半乳糖6硫酸盐硫酸酯酶的活性。 Product Describtion: 4-Methylumbelliferyl β-D-Galactopyranoside-6-sulfate Sodium Salt is used for the determination of galactose-6-sulphate sulphatase activity. Product Application: 4-Methylumbelliferyl β-D-Galactopyranoside-6-sulfate (sodium salt) (4-MU-Gal-6S) is a fluorogenic substrate used to quantify N-acetylgalactosamine-6-sulphatase (GALNS) activity. 4-MU-Gal-6S is cleaved by GALNS to release the fluorescent moiety 4-MU. 4-MU fluorescence is pH-dependent with excitation maxima of 320 and 360 nm at low ( 1.97-6.72) and high ( 7.12-10.3) pH, respectively, and an emission maximum ranging from 445 to 455 nM, increasing as pH decreases. It has been used to detect Morquio disease type A, a lysosomal storage disorder in which GALNS is deficient. 4-MU-Gal-6S can be used to assess GALNS activity in a very small blood volume to determine the extent of deficiency.