Didecyldimethylammonium Chloride (DDAC) from Mexico
DDAC is a twin-chain quaternary ammonium compound classified as a modified aromatic cationic surfactant, essential in industrial biocides and wood preservatives. It complies with the organic surface-active agent definition through its emulsifying and tension-reducing properties. Falls under 3402.41.10.00 for its cationic-aromatic characteristics.
Duty Rate — Mexico → United States
14%
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
• Submit EPA registration documents if used as biocide to distinguish from pesticide classifications
• Ensure invoice specifies 'bulk surfactant, not preparation' to maintain 3402.41 status