N-Nitrosodimethylamine

**Semantic type:** Hazardous or Poisonous Substance

**Definition:** A volatile, combustible, yellow, oily liquid nitrosamine with a faint characteristic odor that decomposes when exposed to light and emits toxic fumes of nitrogen oxides when heated to decomposition. N-Nitrosodimethylamine is primarily used in laboratory research to induce tumors in experimental animals. This substance may be formed during the cooking of foods, especially cured meats and fish, that contain sodium nitrite as a preservative, but is also found in several vegetables, cheeses, alcoholic beverages and fruits, and as a contaminant in rubber products. Exposure to NNitrosodimethylamine irritates the skin and eyes and damages the liver. This substance is reasonably anticipated to be a human carcinogen. (NCI05)

**Synonyms:** - DMN - DMNA - Dimethylnitrosamine - N-Methyl-N-nitrosomethanamine - N-NITROSODIMETHYLAMINE - NDMA