InChI=1S/C27H28O17/c28-6-14-17(32)19(34)21(36)24(42-14)16-13(43-27-23(38)20(35)22(37)25(44-27)26(39)40)5-12-15(18(16)33)10(31)4-11(41-12)7-1-2-8(29)9(30)3-7/h1-5,14,17,19-25,27-30,32-38H,6H2,(H,39,40)