Acrylamide with MEHQ Inhibitor from Mexico
Acrylamide containing 30-50 ppm 4-methoxyphenol (MEHQ) as polymerization inhibitor for extended shelf life. Remains under HTS 2924.19.11.10 per Chapter 29 note (f) as stabilizer doesn't render product specific-use beyond general chemical applications.
Duty Rate — Mexico → United States
110%
Rate breakdown
9903.04.6096.3%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
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
• Quantify inhibitor precisely on commercial invoice (typically 20-60 ppm) to validate stabilizer exception
• Confirm MEHQ addition solely prevents premature polymerization during transport per Chapter notes
• Monitor total impurities; >2% may risk reclassification as technical mixtures