肟是属于亚胺类的化合物，其通式为RR'C=NOH，其中R是有机侧链，R'可以是氢，形成醛肟，或形成另一个有机基团，形成酮肟。O-取代肟形成密切相关的化合物族。酰胺肟是具有一般结构R1C（＝NOH）NR2R3的酰胺的肟。
3-(N-Hydroxycarbamimidoyl)benzoic acid
tert-Butyl 4-(N-hydroxycarbamimidoyl)piperidine-1-carboxylate
2-Amino-N-hydroxybenzimidamide
N'-Hydroxy-3,5-bis(trifluoromethyl)benzimidamide
N-Hydroxy-4-(trifluoromethoxy)benzimidamide
2-Chloro-N'-hydroxynicotinimidamide
N-Hydroxypyrimidine-2-carboximidamide
(Z)-Ethyl 2-(2-aminothiazol-4-yl)-2-(hydroxyimino)acetate
N-Hydroxyisonicotinimidamide
2-Fluorobenzaldehyde oxime
2-Hydroxybenzaldehyde oxime
4-Bromo-N-hydroxybenzimidamide
(E)-1-(Pyridin-2-yl)ethanone O-benzyl oxime
6,7-Dihydroquinolin-8(5H)-one oxime
2-(3-Fluorophenyl)-N-hydroxyacetimidamide
2-(N-Hydroxycarbamimidoyl)pyridine 1-oxide
2-(2-(4-Fluorophenyl)-4-oxopyrazolo[1,5-a]pyrazin-5(4H)-yl)-N'-hydroxyacetimidamide
3-chloro-N-hydroxy-benzamidine
