InChI=1S/C31H50O3/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-22-23-29(32)24-28-25-30(33)27-31(34)26-28/h6-7,9-10,25-27,33-34H,2-5,8,11-24H2,1H3/b7-6+,10-9+