N-Methyl-p-Toluidine from China
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 — China → United States
44%
Rate breakdown
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
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