2,4-Diaminotoluene from Canada
2,4-Diaminotoluene (2,4-TDA) is a di-substituted aniline derivative used primarily as a curing agent in polyurethane production. Classified in HTS 2921.42.65.00 as an aniline derivative subject to the quantitative restrictions of additional U.S. note 3 to section VI.
Duty Rate — Canada → United States
16.5%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Multiple CAS numbers exist (95-80-7 primary); declare all applicable numbers on entry summary
• Isomer ratio critical - mixtures with >10% 2,6-isomer may require different classification
• TSCA reporting required; pre-register with EPA for chemical substance inventory compliance