Didecyldimethylammonium Chloride (DDAC) from Mexico
Didecyldimethylammonium chloride is a quaternary ammonium compound serving as a broad-spectrum disinfectant and wood preservative. As a pure, chemically defined salt, it is classified in HTS 2923.90.0100 under the quaternary ammonium salts heading. Chapter notes confirm inclusion for separate organic compounds.
Duty Rate — Mexico → United States
16.2%
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
• EPA registration required if for pesticide use; include product label and efficacy data
• Purity >95% keeps it in Ch. 29; lower grades risk Chapter 38 reclassification
• Declare as non-hazardous if stabilized properly to minimize shipping costs