InChI=1S/C10H14O8S/c1-7(9(11)12)4-2-3-5-8(10(13)14)6-18-19(15,16)17/h2-4,8H,5-6H2,1H3,(H,11,12)(H,13,14)(H,15,16,17)/b3-2+,7-4+