Carcinogenicity of acetoxymethyl-methyl-nitrosamine after subcutaneous, intravenous and intrarectal applications in rats.

In comparison to the known carcinogenic properties of Acetoxymethyl-Methyl-Nitrosamine (AMMN) after oral or intraperitoneal application the dimethylnitrosamine derivative was tested by subcutaneous, intravenous and intrarectal route in male Sprague-Dawley or Wistar rats. AMMN proved to be primarily a locally acting carcinogen. However, a second mode of action is indicated by systemic carcinogenic properties found after i.v. and s.c. applications. The lung and heart, and to a less extent the kidney and earduct were found as target organs of distant carcinogenic response.