It can greatly promote carcinogenesis.DNA diluted alkali firer proves N-nitroso compounds induce the crosslinking between complementary DNA base pairs and initiate cell cancerization.

• DNA城稀释过滤法证明，N-亚硝基化合物含氮杂环化借诱发DNA互补碱对之间的交联而启动细胞的癌变。