InChI=1S/C21H22O13/c1-21(30)5-8(23)11-9(34-21)4-6-3-7(22)12(24)17(31-2)10(6)16(11)32-20-15(27)13(25)14(26)18(33-20)19(28)29/h3-4,13-15,18,20,22,24-27,30H,5H2,1-2H3,(H,28,29)