: 5,7-Dihydroxy-3-(4-hydroxyphenyl)-4-benzopyrone, 5,7-Dihydroxy-3-(4-hydroxyphenyl)-4H-1-benzopyran-4-one, 5,7-Dihydroxy-3-(4-hydroxyphenyl)-4H-chromen-4-one, 4',6'-Dihydroxy-3-(4-hydroxyphenyl)benzo(e)oxacyclohex-2-en-4-on, 5,7-Dihydroxy-3-(4-hydroxyphenyl)chromen-4-one, 4',5,7-Trihydroxyisoflavone