InChI=1/C11H9ClN4O3/c1-16-10(19)13-7-4-5(12)2-3-6(7)11(16)8(17)14-9(18)15-11/h2-4H,1H3,(H,13,19)(H2,14,15,17,18)/p-1/t11-/m1/s1/fC11H8ClN4O3/h13,15H/q-1 2F1804DEA479249B