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