2,4-Diaminotoluene from Mexico
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 — Mexico → United States
16.5%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
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