Usually aminomethyl groups feature tertiary amines.  Often they are obtained by alkylation with Eschenmoser's salt, a source of [CH=N(CH)].
A cobalt(III) complex of aminomethyl is known in the form [Co(bipyridine)(CHNH)](ClO4).
Aminomethyl is the first member of a series of 1-aminoalkyl groups of the form .
Aminomethyl is used in the standard (IUPAC) names of some compounds, such as 4-(aminomethyl) benzoic acid.