The carcinogenicity of 3-methoxy-4-aminoazobenzene and its N-methyl derivatives for extrahepatic tissues of the rat.
نویسندگان
چکیده
In contrast to all previous results with many derivatives of 4-dimethylaminoazobenzene, the ingestion by the rat of 3-methoxy-4-aminoazobenzene or its N-monomethyl or N,N-dimethyl derivatives was found to induce high incidences of squamouscell carcinomas of the ear duct. $-Methoxy-4-aminoazobenzene also induced low incidences of adenocarcinomas in the small intestine and mammary gland. In addition, the 3-methoxy dyes induced a few solitary tumors of the skin. However, these dyes exhibited very little carcinogenic activity toward the liver. No tumors were noted in rats fed ~-methoxy-4-aminoazobenzene or its N-monomethyl and N,N-dimethyl derivatives, ~-hydroxy-4-monomethylaminoazobenzene, or ~-hydroxy-4-dimethylaminoazobenzene. Syntheses are described for five new dyes: ~-methoxy-4-aminoazobenzene; ~hydroxy-, ~-methoxy-, and 3-methoxy-4-monomethylaminoazobenzene; and ~methoxy-4-dimethylaminoazobenzene.
منابع مشابه
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ورودعنوان ژورنال:
- Cancer research
دوره 21 شماره
صفحات -
تاریخ انتشار 1961