InChI=1S/C21H30O12/c1-7-3-9-20(5-22,19(2)15(27)13(26)16(32-9)21(19)6-30-21)4-8(7)31-18-12(25)10(23)11(24)14(33-18)17(28)29/h3,8-16,18,22-27H,4-6H2,1-2H3,(H,28,29)