InChI=1S/C31H50O4/c1-8-22(19(2)3)10-9-20(4)24-11-12-25-28-26(14-15-29(24,25)6)30(7)16-13-23(35-21(5)33)17-31(30,34)27(28)18-32/h8,18-20,23-28,34H,9-17H2,1-7H3/b22-8+/t20-,23+,24-,25+,26+,27-,28+,29-,30-,31-/m1/s1