Abstract
4CMB, 4HMB and BC were tested in 5 strains of S. typhimurium and 2 strains of E. coli without S9. 4HMB was negative in all strains. 4CMB was a strong positive mutagen in TA1535, TA1537, TA1538, TA98, TA100 and WP2uvrA −(pKM101), and BC was a weak mutagen in TA100 and WP2uvrA −(pKM101). Positivity was determined as a dose response over 3 or more points, in repeat experiments, giving a significant correlation coefficient.
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