N-methyl-14C benzyl amine was prepared from benzyl amine through a sequence of trifluoroacylation
ionization
14C-methylation and hydrolysis. N-methyl-14C benzyl nitrosamine was obtained by treating aqueous 14C-dialkylamine with NaNO2 and H2SO4. The radiochemical purity checked by radio-HPLC and.specific activity of the product was 99% and 9.2 × 1011Bq/mol respectively.