InChI=1S/C32H50O4/c1-19-9-11-25(36-28(19)34)20(2)22-13-17-32(8)24-10-12-26-29(4,5)27(35-21(3)33)15-16-30(26,6)23(24)14-18-31(22,32)7/h19-20,22,25-27H,9-18H2,1-8H3