phosphoramide A compound in which one or more of the OH groups of phosphoric acid have been replaced with an amino or substituted amino group. The term is commonly confined to the phosphoric triamides, P(=O)(NR2)3, since replacement of one or two OH groups produces phosphoramidic acids: P(=O)(OH)(NR2)2 , P(=O)(OH)2(NR2). CHEBI:26076 CHEBI:14827 chebi_ontology phosphamide CHEBI:17102 phosphoramides phosphamides CHEBI:8162 phosphoric acid primary amide