InChI=1S/C15H24O5S/c1-10(9-20-21(17,18)19)8-12-6-7-15(3,16)13-5-4-11(2)14(12)13/h8,12-13,16H,4-7,9H2,1-3H3,(H,17,18,19)/b10-8+