100288-21-9

4H-1-Benzopyran-4-one,6-[2-(5,7-dihydroxy-4-oxo-4H-1-benzopyran-2-yl)-4,5-dihydroxyphenyl]-2-(3,4-dihydroxyphenyl)-2,3-dihydro-5,7-dihydroxy-,(S)-