InChI=1S/C30H38O12/c1-15(9-10-38-19-7-5-17-6-8-23(32)39-21(17)13-19)11-18(31)12-16(2)20(14-22-30(3,4)42-22)40-29-26(35)24(33)25(34)27(41-29)28(36)37/h5-9,12-13,18,20,22,24-27,29,31,33-35H,10-11,14H2,1-4H3,(H,36,37)/b15-9+,16-12-