CAS 18997-57-4 appears in our catalog under these names: 4–Methylumbelliferyl–β–D–Glucopyranoside, 4-Methylumbelliferyl-beta-D-glucopyranoside, 4-Methylumbelliferyl-beta-d-glucopyranoside, 98%, 4-Methylumbelliferyl-β-D-Glucopyranoside/ 100%, 4-Methylumbelliferyl beta-D-glucopyranoside, 99% . Offered by: GLPBio, Biosynth, Combi-blocks, TargetMol, Thermo Scientific (Alfa Aesar). Available pack sizes: 1g, 10mM (in 1ml dmso), 5g, 2g, 10g, 25g, 50g, 100g.