InChI=1/C11H9ClN4O3/c1-16-10(19)13-6-4-2-3-5(12)7(6)11(16)8(17)14-9(18)15-11/h2-4H,1H3,(H,13,19)(H2,14,15,17,18)/t11-/m0/s1/f/h13-15H 3126254BB754F705