InChI=1/C11H8N2O4S2/c1-12-10(15)9(19-11(12)18)5-6-4-7(13(16)17)2-3-8(6)14/h2-5,14H,1H3/p-1/b9-5+/fC11H7N2O4S2/h14h/q-1 1B5FA9CAD4573A4F