1-methyl-4-(phenylacetyl)pyridinium cation

(Z)-2-(((2-(methylamino)-5-nitrophenyl)(phenyl)methylene)amino)acetic acid

{[1-(2-Benzylamino-5-nitro-phenyl)-1-phenyl-meth-(E)-ylidene]-amino}-acetic acid

2,3-二氨基-2-丁烯二腈

4-oxo-2-imino-5-hydroximino-thiazolidine