2-(3,4-Dihydroxy-phenyl)-3,7-dihydroxy-5-methoxy-chroman-4-one 4H-1-benzopyran-4-one, 2-(3,4-dihydroxyphenyl)-2,3-dihydro-3,7-dihydroxy-5-methoxy-, (2R,3R)- 5-O-Methyldihydroquercetin InChI=1/C16H14O7/c1-22-11-5-8(17)6-12-13(11)14(20)15(21)16(23-12)7-2-3-9(18)10(19)4-7/h2-6,15-19,21H,1H3/t15-,16+/m0/s rel-(2R,3R)-2-(3,4-dihydroxyphenyl)-3,7-dihydroxy-5-methoxy-2,3-dihydro-4H-chromen-4-one