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