Mutagenicity of methylated N-nitrosopiperidines in Saccharomyces cerevisiae.


N-Nitrosopiperidine (NP) and a number of methylated derivatives were examined for mutagenicity in Saccharomyces cerevisiae. NP, 2-methyl-NP, 3-methyl-NP, 4-methyl-NP and 3,5-dimethyl-NP were mutagens when metabolic activation (rat-liver microsomes) was provided. 2,6-Dimethyl-NP was not a mutagen. The NPs giving a positive response stimulated forward… (More)


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