Toluene Diisocyanate TDI 80/20 CAS 26471-62-5 mainly refers to the mixture of 2, 4-toluene diisocyanate containing 80% mass percentage and 2, 6-toluene diisocyanate containing 20% mass percentage.Sometimes also referred to as toluene diisocyanate. Nitrotoluene was nitrated to...