InChI=1/C40H56O/c1-30(19-13-20-32(3)24-25-35-33(4)23-15-26-38(35,6)7)17-11-12-18-31(2)21-14-22-34(5)36-29-37-39(8,9)27-16-28-40(37,10)41-36/h11-14,17-22,24-25,29,36H,15-16,23,26-28H2,1-10H3/b12-11+,19-13+,21-14+,25-24+,30-17+,31-18+,32-20+,34-22+