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