Dioctyl Sodium Sulfosuccinate (DOSS) from Japan
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 — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
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