[group af aromatic oxygen heterocyclic compounds (phenyl benzopyrans) widely distributed in higher plants; some are pigments and others have physiologic properties. ( CSP )]
UMLS (NCI) C0596577 Relation/PAR: benzopyran
Relation/CHD: flavone
2-(3,4-Dihydroxyphenyl)-3,5,7-trihydroxy-4H-1-benzopyran-4-one