Polysebacic Acid Polymer from Mexico
Low molecular weight polysebacic acid (oligomer <1000 Da), used in drug delivery systems. Technically the polymer but classified as sebacic acid derivative under HTS 2917.13.00 when not meeting polymer definitions. Meets chapter 29 compound criteria.
Duty Rate — Mexico → United States
4.8%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• GPC molecular weight distribution required to prove oligomer status vs true polymer (3903)
• Biomedical grade requires DMF filing with FDA
• Sterile packaging mandatory for pharma imports