InChI=1S/C40H56O2/c1-30(19-13-20-32(3)23-28-40-37(7,8)25-16-27-39(40,10)42-40)17-11-12-18-31(2)21-14-22-33(4)34-29-35-36(5,6)24-15-26-38(35,9)41-34/h11-14,17-23,28-29,34H,15-16,24-27H2,1-10H3/b12-11-,19-13+,21-14+,28-23-,30-17+,31-18+,32-20-,33-22-