Toluene diisocyanates are reasonably expected to get human carcinogens based upon sufficient evidence of carcinogenicity from studies in experimental animals. The unexplained excesses in lung cancer and NMRD mortality while in the Pinkerton cohort [12] are about, and any publicity dependence appears to get impacted by nutritious worker survivor bias. https://costabull.com/product/toluene-diisocyanate-tdi-80-20/