CAS 128095-50-1 appears in our catalog under these names: (2R,3S,4S,5R,6S)-2-(Methoxycarbonyl)-6-((4-methyl-2-oxo-2H-chromen-7-yl)oxy)tetrahydro-2H-pyran-3,4,5-triyl triacetate, 98%, 4-Methylumbelliferyl 2,3,4-Tri-O-acetyl-Alpha-L-idopyranosiduronic Acid, Methyl Ester, >95% (HPLC), 4-Methylumbelliferyl 2,3,4-tri-O-acetyl-a-L-idopyranosiduronic acid methyl ester. Offered by: Chemat Brand, TRC, Biosynth. Available pack sizes: on request, 2,5mg, 5mg, 2mg.