O=[N+]([O-])c1ccc(CNc2ncccn2)cc1 mol7511 0_1 O=[N+]([O-])c1ccc(CNc2nccc[nH+]2)cc1 mol7511 1_1 O=[N+]([O-])c1ccc(C[NH2+]c2ncccn2)cc1 mol7511 1_2