InChI=1/C12H13ClN4O4/c1-12(2,14)11-15-10(21-16-11)6-20-9-5-7(17(18)19)3-4-8(9)13/h3-5H,6,14H2,1-2H3/p+1/fC12H14ClN4O4/h14H/q+1 1BE6648103644C83