InChI=1S/C21H22O12/c22-8-4-11(24)9-6-14(32-21-17(28)15(26)16(27)19(33-21)20(29)30)18(31-13(9)5-8)7-1-2-10(23)12(25)3-7/h1-5,14-19,21-28H,6H2,(H,29,30)/t14-,15-,16-,17+,18+,19-,21+/m0/s1