4,4'-Methylenedianiline (MDA) from Mexico
4,4'-Methylenedianiline is a diphenylmethane-based aromatic polyamine used in polyurethane production and epoxy curing agents. Classified under HTS 2921.59.4000 due to its status as a derivative of aromatic polyamines specified in additional U.S. note 3 to section VI.
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
• Comply with TSCA regulations and provide safety data sheets due to MDA's carcinogenic classification
• Confirm quota eligibility under note 3; excess imports may face higher rates or denial
• Label shipments with exact chemical name and CAS (101-77-9) to prevent reclassification as a polymer precursor