Structure of a mutagenic compound (Me-IQ) isolated from broiled fish was determined to be 2-amino-3,4-dimethylimidazo[4,5-f]quinoline based on the mass-, UV- and 1H-NMR-spectra and chemical synthesis. Me-IQ showed strong mutagenic activity towards Salmonella typhimurium TA98 in the presence of S-9 mix.
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Kasai et al. (1980) studied this question.
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