Dioctyl Sodium Sulfosuccinate (DOSS) from Mexico
Anionic surfactant with sulfosuccinate ester structure, classified under 2908.99.1200 as sulfo derivative per note 5(A) ester classification. Used in pharmaceuticals, food emulsification, and industrial wetting agents. Single sulfo group maintains chapter 29 status.
Duty Rate — Mexico → United States
15.5%
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
• FDA/USP grade requires additional Certificates of Analysis for purity
• Ester structure confirmed by saponification value testing
• Avoid classifying as phosphate ester (2919) despite similar applications