3,9-Dihydroxy-6H-benzofuro(3,2-c)(1)benzopyran-6-one 3-Benzofurancarboxylic acid, 2-(2,4-dihydroxyphenyl)-6-hydroxy-, delta-lactone (6CI) 479-13-0 5-19-06-00405 (Beilstein Handbook Reference) 6H-Benzofuro(3,2-c)(1)benzopyran-6-one, 3,9-dihydroxy- BRN 0266702 CCRIS 7311 COUMESTROL Cumoesterol Cumoestrol Cumostrol EINECS 207-525-6 NSC 22842