InChI=1S/C13H22O7S3/c1-3-6-22-23-7(21-2)4-5-19-13-10(16)8(14)9(15)11(20-13)12(17)18/h3,6-11,13-16H,4-5H2,1-2H3,(H,17,18)/b6-3+