InChI=1S/C16H26O4S/c1-5-8-14(2)9-6-10-15(3)11-7-12-16(4)13-20-21(17,18)19/h5,8,10,12H,1,6-7,9,11,13H2,2-4H3,(H,17,18,19)/b14-8+,15-10-,16-12+