InChI=1S/C40H50O3/c1-28(17-13-18-30(3)21-22-36-32(5)23-34(41)26-39(36,7)8)15-11-12-16-29(2)19-14-20-31(4)38(43)25-37-33(6)24-35(42)27-40(37,9)10/h11-20,24-25,34,41H,23,26-27H2,1-10H3/b12-11-,17-13+,19-14+,28-15-,29-16-,30-18-,31-20-,37-25+