a survey of 30 samples of various nipples and pacifiers indicated the presence of the following n-nitrosamines : n-nitrosodimethylamine ( up to 70 micrograms/kg ) , n-nitrosodiethylamine ( up to 88 micrograms/kg ) , n-nitrosodi-n-butylamine ( up to 2796 micrograms/kg ) , n-nitrosopiperidine ( up to 180 micrograms/kg ) , and n-nitrosomorpholine ( up to 86 micrograms/kg ) .
C0028197
nitrosamines
C0012200
n-nitrosodiethylamine