https://doi.org/10.1351/goldbook.A00267
Derivatives of oxoacids RnE(=O)OH in which the hydroxy group is replaced by an amino group and the oxo group is replaced by =NR. Amidines include carboxamidines, sulfinamidines and phosphinamidines, . In organic chemistry an unspecified amidine is commonly a carboxamidine.
See also: carboxamidines, sulfinamidines