title: Relationships between mutagenic potency, reversion mechanism and metabolic behaviour within a class of chemicals (hydrazine derivatives).
abstract: Homogeneous mutagenicity data, available for 16 hydrazine derivatives assayed in the Salmonella/microsome test, were tentatively associated with their chemical structure. Some possible relationships were detected between chemical features and the following parameters in vitro: (a) mutagenic potency, expressed as revertants per micromole compound, which varied over a 3200-fold range without S-9 mix and a 7000-fold range with S-9 mix; (b) reversion mechanism, as inferred from the selective sensitivity of 5 Salmonella typhimurium tester strains; (c) metabolic behaviour in the presence of S-9 mix containing rat liver, mouse liver or mouse lung /-9 fractions from animals treated with Aroclor-1254.
mesh_terms: D000818:Animals; D006834:Hydrazines / Q000378:metabolism / Q000633:toxicity*; D051379:Mice; D008862:Microsomes, Liver / Q000378:metabolism; D009153:Mutagens / Q000378:metabolism / Q000633:toxicity*; D009154:Mutation; D051381:Rats; D013329:Structure-Activity Relationship
chemical_list: D006834:Hydrazines; D009153:Mutagens