Benzenesulfonic Acid from Mexico
Benzenesulfonic acid is a sulfonated derivative of benzene (C6H5SO3H), a key intermediate in dye and detergent production. Classified under HTS 2904.99.47.00 as an 'other' aromatic sulfonated hydrocarbon derivative not specified elsewhere in heading 2904.
Duty Rate — Mexico → United States
15.5%
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
• Include NMR or GC-MS analysis confirming sulfonation on aromatic ring for proper 2904 classification
• Comply with TSCA pre-manufacture notification if annual import volume exceeds 10,000 lbs
• Segregate from amines/ammonia during storage to prevent salt formation affecting purity specs