InChI=1/C6H6O7S/c7-5(8)2-1-4(3-6(9)10)14(11,12)13/h1-3H,(H,7,8)(H,9,10)(H,11,12,13)/p-3/b2-1-,4-3+/fC6H3O7S/q-3 7FC7C199F8462274