11021-22-0 4H-1-Benzopyran-4-one, 8-(beta-D-glucopyranosyloxy)-3,5,7-trihydroxy-2-(4-hydroxyphenyl)- 8-(beta-D-glucopyranosyloxy)-3,5,7-trihydroxy-2-(4-hydroxyphenyl)-4H-1-benzopyran-4-one Herbacin