InChI=1S/C30H28O12/c31-14-7-19(34)15(20(35)8-14)9-24(39)27(12-1-3-17(32)22(37)5-12)28-25(40)11-21(36)16-10-26(41)29(42-30(16)28)13-2-4-18(33)23(38)6-13/h1-8,11,24,26-27,29,31-41H,9-10H2