These are compounds with the general structure R-C=N-NH2, where R is an aryl group.
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2-Propenal, 3-phenyl-, methylphenylhydrazone
(E)-2-{N'-[(2R,3R,4R,5R)-2,3,4,5,6-Pentahydroxy-hex-(E)-ylidene]-N-phenyl-hydrazino}-but-2-enedioic acid dimethyl ester