InChI=1/C12H6N2O6S/c15-11-9(21-12(16)13-11)5-6-1-2-7(19-6)8-3-4-10(20-8)14(17)18/h1-5H,(H,13,15,16)/b9-5-/f/h13H	A021FA03583886DF