InChI=1/C14H12N3O3/c15-5-8-9(16)3-13-7(14(8)17)1-6-2-10(18)11(19)4-12(6)20-13/h2-4,7,13,16,18-19H,1,17H2/q-1/p+1/t7-,13+/m1/s1/fC14H13N3O3/h16H/q 623ABE52E441EC9F