title: Relation between the chemical structure and acute toxicity of 1-phenyl-3-methyltriazenes as activated metabolites during the carcinogenic action of 1-phenyl-3,3-dimethyltriazenes.
abstract: The mol LD50 values were correlated with Hammett sigma constants in terms of the Hansen empiric equation 6 for para substituted derivatives of 1-phenyl-3-methyltriazene. Good agreement was achieved and the line slope of the correlation, 0.3, is the same as that found during an identical experiment with derivatives of 1-phenyl-3,3-dimethyltriazene [1]. This is an indirect evidence that the considered mechanism of the interaction with biological substrate goes through the "activated carcinogen" - derivatives of 1-phenyl-3-methyltriazene, formed through the oxidative N-demethylation of the initial 1-phenyl-3,3-dimethyltriazenes.
mesh_terms: D002273:Carcinogens; D007928:Lethal Dose 50; D010084:Oxidation-Reduction; D013329:Structure-Activity Relationship; D014226:Triazenes / Q000378:metabolism / Q000633:toxicity*
chemical_list: D002273:Carcinogens; D014226:Triazenes