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