InChI=1S/C40H56O4/c1-28(17-13-18-30(3)21-22-35-37(5,6)24-32(41)26-39(35,9)43)15-11-12-16-29(2)19-14-20-31(4)34-23-36-38(7,8)25-33(42)27-40(36,10)44-34/h11-21,23,32-34,41-43H,24-27H2,1-10H3/b12-11-,17-13-,19-14?,28-15+,29-16+,30-18+,31-20-