https://doi.org/10.1351/goldbook.N04167
N-Nitroso @A00274@, compounds of the structure R2NNO. Compounds RNHNO are not ordinarily isolable, but they, too, are nitrosamines. The name is a contraction of N-nitrosoamine and, as such, does not require the N locant.
See also:
nitrosamides