N,N-dialkyl (Me, Et, n-Pr ou iso-Pr) phosphoramidates de dialkyle (Me, Et, n-Pr ou iso-Pr) autres que N, N diméthylphosphoramidate de diéthyle visé au paragraphe 1C350;
Dialkyl [methyl, ethyl or propyl (normal or iso)] N,N-dialkyl [methyl, ethyl or propyl (normal or iso)]-phosphoramidates, other than Diethyl-N,N-dimethylphosphoramidate which is specified in 1C350;