nitrosation of a tea made from ephedra altissima yielded n-nitrosoephedrine ( nep ) , n-nitrosopseudoephedrine ( npep ) , n-nitrosoproline ( npro ) , n-nitrosomethylbenzylamine ( nmba ) , trace quantities of 2 unidentified non-volatile nitrosamines and the new nitroso compound 2- ( n-nitroso-n-methylamino ) propiophenone ( nmap ) .
C0028197
nitrosamines
C0028199
nitroso compound