4-Methylumbelliferyl-beta-D-Galactoside

4-Methylumbelliferyl-beta-D-galactoside (MUG) is a fluorogenic substrate for beta-galactosidase (beta-gal). Hydrolysis of MUG by beta-gal releases the fluorescent moiety 4-MU, which displays a pH-dependent excitation maximum of 330, 370, and 385 nm at pH 4.6, 7.4, and 10.4, respectively, and an emission maximum between 445-454 nm. MUG has been used to detect beta-gal activity in intact bacteria, yeast, and mammalian cells.Formal Name: 7-(beta-D-galactopyranosyloxy)-4-methyl-2H-1-benzopyran-2-one. CAS Number: 6160-78-7. Synonyms: 4-Methylumbelliferyl-beta-D-Galactopyranoside. Molecular Formula: C16H18O8. Formula Weight: 338.3. Purity: >98%. Formulation: (Request formulation change), A solid. Solubility: DMSO: slightly soluble, Ethanol: slightly soluble, Methanol: slightly soluble. lambdamax: 319 nm. SMILES: CC(C1=CC=C(O[C@@H]2O[C@@H]([C@@H]([C@@H]([C@H]2O)O)O)CO)C=C1O3)=CC3=O. InChi Code: InChI=1S/C16H18O8/c1-7-4-12(18)23-10-5-8(2-3-9(7)10)22-16-15(21)14(20)13(19)11(6-17)24-16/h2-5,11,13-17,19-21H,6H2,1H3/t11-,13+,14+,15-,16-/m1/s1. InChi Key: YUDPTGPSBJVHCN-DZQJYWQESA-N.