InChI=1S/C21H22O13/c1-31-10-4-8(32-20-17(27)15(25)16(26)18(33-20)19(28)29)2-7-3-11-13(14(24)12(7)10)9(23)5-21(30,6-22)34-11/h2-4,15-18,20,22,24-27,30H,5-6H2,1H3,(H,28,29)