the genotoxicity of 1-methyl-3-phenyl-1-nitrosourea ( mpnu ) , 1-methyl-3- ( p-chlorophenyl ) -1-nitrosourea ( c1-mpnu ) , 1-ethyl-3-phenyl-1-nitrosourea ( epnu ) , 1,3-dimethyl-3-phenyl-1-nitrosourea ( dmpnu ) and their derivatives substituted by deuterium in different positions was studied using sister chromatid exchange ( sce ) induction in chinese hamster v79-e cells .
C0037211
sister chromatid exchange
C0007634
cells