InChI=1S/C40H50/c1-30(18-13-20-32(3)23-26-38-27-25-34(5)36(7)37(38)8)16-11-12-17-31(2)19-14-21-33(4)24-28-39-35(6)22-15-29-40(39,9)10/h11-28H,29H2,1-10H3/b12-11+,18-13+,19-14+,26-23+,28-24+,30-16+,31-17+,32-20+,33-21+