Didecyldimethylammonium Chloride (DDAC) from Germany
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 — Germany → United States
10%
Rate breakdown
9903.05.3910%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.97, articles the product of a member state of the European Union, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 10 percent, as provided for in U.S. note 52 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