Perfluoroglutaric Acid from Mexico
HOOC-(CF2)3-COOH, three-methylene perfluorodicarboxylic acid. Fully perhalogenated acyclic hydrocarbon derivative classifiable in 2903.78.00.00. Specialty monomer for fluorinated polyamides.
Duty Rate — Mexico → United States
3.7%
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
• Less stable than longer-chain analogs; specify storage below 40°C
• Provide HPLC chromatogram showing <1% monocarboxylic impurities
• Biodegradation testing may be required for environmental clearance