InChI=1S/C28H40O4/c1-17(2)18(3)7-8-19(4)22-9-10-23(26(22,5)13-14-29)21-15-24-28(32-24)16-20(30)11-12-27(28,6)25(21)31/h7-8,14-15,17,19-20,22-24,30H,3,9-13,16H2,1-2,4-6H3/b8-7+/t19-,20+,22-,23+,24+,26-,27-,28+/m1/s1