InChI=1S/C31H48O3/c1-22(2)12-9-13-23(3)14-10-15-24(4)16-11-17-25(5)20-21-31(34)26(6)29(32)27-18-7-8-19-28(27)30(31)33/h7-8,18-20,22-24,26,34H,9-17,21H2,1-6H3/b25-20+/t23-,24-,26?,31?/m1/s1