Abstract
4-Chloromethylbiphenyl (4CMB), benzyl chloride (BC) and 4-hydroxymethyl-biphenyl (4HMB) were tested for biological activity in the following assays: (i) the Salmonella/microsome assay; (ii) a bacterial ‘fluctuation’ assays; (iii) a DNA repair assay in Hela cells, and (iv) a mouse lymphoma mutation assay. 4CMB was active in assays (i), (ii) and (iii) but not in (iv); BC was active in assays (i), (ii), (iii) but not in (iv) while 4HMB was inactive in all assays. Where biological activity was seen this did not require addition of a liver S9 preparation. 4CMB was more active than BC in all the test systems in which a positive response was obtained. The implication of these results for a test battery approach to in vitro testing is discussed.
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