InChI=1S/C27H28O18/c1-6-14(31)16(33)20(37)26(41-6)42-8-4-9(28)13-12(5-8)43-22(18(35)15(13)32)7-2-10(29)23(11(30)3-7)44-27-21(38)17(34)19(36)24(45-27)25(39)40/h2-6,14,16-17,19-21,24,26-31,33-38H,1H3,(H,39,40)