2H-1-Benzopyran-2-one, 7-(beta-D-galactopyranosyloxy)-4-methyl- 4-Methylumbelliferyl beta-galactoside 4-Methylumbelliferyl-galactopyranoside 6160-78-7 7-(beta-D-Galactopyranosyloxy)-4-methyl-2H-1-benzopyran-2-one EINECS 228-185-5