155740-03-7 9H-Xanthen-9-one, 2-(2-(3,4-dihydroxyphenyl)-6-beta-D-glucopyranosyl-5,7-dihydroxy-4-oxo-4H-1-benzopyran-8-yl)-1,4,8-trihydroxy-6-methoxy- Swertifrancheside