2-(3,4-dihydroxyphenyl)-3,5-dihydroxy-3,4-dihydro-2H-chromen-7-yl acetate 2H-1-benzopyran-3,5,7-triol, 2-(3,4-dihydroxyphenyl)-3,4-dihydro-, 7-acetate InChI=1/C17H16O7/c1-8(18)23-10-5-13(20)11-7-15(22)17(24-16(11)6-10)9-2-3-12(19)14(21)4-9/h2-6,15,17,19-22H,7H2,1H