Dinonylnaphthalenesulfonic Acid from Mexico
Dinonylnaphthalenesulfonic acid (DNNSA) features two nonyl alkyl chains on sulfonated naphthalene, qualifying as alkylated sulfonated hydrocarbon derivative under HTS 2904.99.50.00. Widely used in alkylation catalysts and metal extraction.
Duty Rate — Mexico → United States
13.7%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Provide alkylation pattern analysis to confirm hydrocarbon derivative status vs synthetic polymers
• Biodegradation data may be required under EPA Vessel General Permit for ballast water
• Segregate from strong oxidizers; test container compatibility with long-chain alkyl structure