N-Methyl-p-Toluidine from Mexico
N-Methyl-p-toluidine is a secondary amine derivative of p-toluidine used as a catalyst in epoxy resin curing. It qualifies under HTS 2921.43.90 as the toluidine parent structure remains principal characteristic despite N-methylation. Technical grade >97% purity required.
Duty Rate — Mexico → United States
16.5%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• GC analysis showing <2% tertiary amine impurities prevents 2921.49 classification
• Flash point documentation (>93°C) for flammable liquid exemption
• Epoxy formulator letters support chemical intermediate status