InChI=1S/C27H28O16/c28-6-13-17(31)19(33)22(36)26(42-13)40-7-8-4-10-14(11(29)5-8)18(32)15-9(16(10)30)2-1-3-12(15)41-27-23(37)20(34)21(35)24(43-27)25(38)39/h1-5,13,17,19-24,26-29,31,33-37H,6-7H2,(H,38,39)