Linear Alkylbenzene Sulfonate (LAS) from Mexico
LAS is a primary anionic synthetic surfactant used in laundry and dishwashing detergents for its excellent foaming and cleaning properties. It meets the Chapter 34 definition for organic surface-active agents by reducing surface tension in water solutions and forming stable emulsions. Classified under 3402.90.10 as a synthetic detergent, distinct from soap.
Duty Rate — Mexico → United States
13.8%
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
• Verify surfactant concentration meets 0.5% water test for surface tension reduction per Chapter notes to avoid reclassification
• Provide Safety Data Sheets (SDS) and purity certificates; common pitfall is mislabeling as soap leading to 3401 duties
• Ensure CAS number documentation (e.g
• 27176-87-0) for customs verification of synthetic composition