InChI=1S/C42H58O2/c1-30(2)16-10-17-31(3)18-11-19-32(4)20-12-21-33(5)22-13-23-34(6)24-14-25-35(7)28-29-38-37(9)41(43)40-36(8)26-15-27-39(40)42(38)44/h15-16,18,20,22,24,26-28H,10-14,17,19,21,23,25,29H2,1-9H3/b31-18+,32-20+,33-22+,34-24+,35-28+