InChI=1S/C21H34O4S/c1-19-7-4-8-20(2,18(23)24)15(19)6-10-21-9-5-13(11-16(19)21)14(17(21)22)12-26(3)25/h13-17,22H,4-12H2,1-3H3,(H,23,24)