Toluene diisocyanates are fairly expected being human carcinogens based upon adequate evidence of carcinogenicity from research in experimental animals. The unexplained excesses in lung most cancers and NMRD mortality in the Pinkerton cohort [twelve] are relating to, and any publicity dependence seems to become affected by healthy employee survivor bias. https://costabull.com/product/toluene-diisocyanate-tdi-80-20/