2-Hydroxy-4-methyl-chromen-7-one

4-methylumbelliferyl 2,3-O-isopropylidene-β-D-mannopyranoside

4-methylumbelliferyl 2,3,4,6-tetra-O-acetyl-α-D-mannopyranosyl-(1→6)-2,3-O-isopropylidene-β-D-mannopyranoside