InChI=1S/C30H38O12/c1-15(2)5-7-21(32)17(4)12-18(31)11-16(3)9-10-39-19-13-22-20(6-8-24(33)40-22)23(14-19)41-30-27(36)25(34)26(35)28(42-30)29(37)38/h5-6,8-9,12-14,18,21,25-28,30-32,34-36H,7,10-11H2,1-4H3,(H,37,38)/b16-9+,17-12-