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
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
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