Ferretti JJ, Lu W, Liu MB. Mutagenicity of benzidine and related compounds employed in the detection of hemoglobin.
Am J Clin Pathol 1977;
67:526-7. [PMID:
326025 DOI:
10.1093/ajcp/67.6.526]
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Abstract
Seven compounds commonly used as chromagens for the detection of hemoglobin and its derivatives have been assayed for mutagenicity employing the Salmonella/mammalian microsome test. Three of these compounds, benzidine, o-dianisidine, and o-tolidine, were shown to be mutagenic. Since benzidine and o-tolidine are already known to be carcinogens, there is a high probability that o-dianisidine will also prove to be a carcinogen. Four compounds tested with this system, o-anisidine, diphenylamine, guaicol, and o-toluidine, were not mutagenic.
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