InChI=1S/C28H40O2/c1-17(2)18(3)7-8-19(4)24-16-25(30)26-22-10-9-20-15-21(29)11-13-27(20,5)23(22)12-14-28(24,26)6/h7-10,15,17-19,23-25,30H,11-14,16H2,1-6H3/b8-7+/t18-,19+,23-,24+,25-,27-,28+/m0/s1