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