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