毒理性
识别和使用:N-亚硝基甲基乙烯胺(NMVA)是一种黄色液体。人体研究:无可用的数据。动物研究:在一组19只给予NMVA饮水剂量为0.3或0.6 mg/kg体重/天的老鼠中,2只发展出乳头状瘤,17只发展出食管广泛的结节状和鳞状细胞癌。此外,4只动物患有舌癌,5只动物患有咽癌;8只老鼠显示出胆管增殖和肝脏囊肿。上消化道肿瘤的平均诱发时间分别为390或270天。导致50%动物肿瘤的平均总剂量为0.11或0.16 g/kg体重。NMVA在黑腹果蝇中引起X连锁隐性致死突变。
IDENTIFICATION AND USE: N-nitrosomethylvinylamine (NMVA) is a yellow liquid. HUMAN STUDIES: There are no data available. ANIMAL STUDIES: Of a group of 19 rats given NMVA in drinking-water at doses of 0.3 or 0.6 mg/kg bw/day, 2 developed papillomas and 17 developed nodular and widely distributed squamous-cell carcinomas of the esophagus. In addition, 4 animals had carcinomas of the tongue and 5 animals had carcinomas of the pharynx; 8 rats showed bile-duct proliferation and cysts in the liver. The average induction time for the tumors of the upper digestive tract was 390 or 270 days, respectively. The average total dose that caused tumors in 50% of the animals was 0.11 or 0.16 g/kg bw. NMVA causes X-linked recessive lethal mutations in Drosophila melanogaster.
来源:Hazardous Substances Data Bank (HSDB)