InChI=1S/C30H30O12/c1-12(2)20(33)19-25-15(9-10-30(3,4)42-25)24-18(16(11-17(32)39-24)13-5-7-14(31)8-6-13)26(19)40-29-23(36)21(34)22(35)27(41-29)28(37)38/h5-12,21-23,27,29,31,34-36H,1-4H3,(H,37,38)