InChI=1S/C30H38O12/c1-16(2)4-8-22(32)19(15-31)13-21(40-30-27(36)25(34)26(35)28(42-30)29(37)38)12-17(3)10-11-39-20-7-5-18-6-9-24(33)41-23(18)14-20/h4-7,9-10,13-14,21-22,25-28,30-32,34-36H,8,11-12,15H2,1-3H3,(H,37,38)/b17-10+,19-13-