Clofibrate from Mexico
Clofibrate is ethyl 2-(4-chlorophenoxy)-2-methylpropanoate, an aromatic carboxylic ester with additional oxygen function in the ether linkage. Specifically named in HTS 2918.99.0500 as a derivative of carboxylic acid with oxygen function, meeting Chapter 29 criteria for esters classified with parent acid functions. Used historically as lipid-lowering pharmaceutical.
Duty Rate — Mexico → United States
15.8%
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
• Require pharmaceutical-grade COA with HPLC purity >98%; declare therapeutic use if applicable for FDA compliance
• Include REACH/ TSCA registration numbers; note discontinued status in many markets but still imported for research
• Verify ester remains intact - hydrolyzed clofibric acid may shift to different subheading