InChI=1S/C38H58O4/c1-24(2)25(3)8-9-26(4)31-14-15-32-30-13-12-28-23-29(18-20-37(28,5)33(30)19-21-38(31,32)6)42-36(40)17-11-27-10-16-34(39)35(22-27)41-7/h10-11,16-17,22,24-26,28-33,39H,8-9,12-15,18-21,23H2,1-7H3/b17-11+