InChI=1S/C28H46O4/c1-16(2)17(3)7-8-18(4)20-9-10-21-23-22(12-13-26(20,21)5)27(6)14-11-19(29)15-28(27,32)25(31)24(23)30/h7-8,16-21,24-25,29-32H,9-15H2,1-6H3/b8-7+