Taxifolin

Chemical Name: (2R,3R)-2-(3,4-Dihydroxyphenyl)-3,5,7-trihydroxy-2,3-dihydro-4H-1-benzopyran-4-one (as per EP)

Smile: O=C1[C@H](O)[C@@H](C2=CC=C(O)C(O)=C2)OC3=CC(O)=CC(O)=C13