Perfluoroglutaric Acid from Japan
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 — Japan → United States
23.8%
Rate breakdown
9903.04.6211.3%Patented pharmaceutical articles that are the product of Japan, of a European Union member country, of South Korea, of Switzerland, or of Liechtenstein as provided for in subdivisions (c) and (f) of U.S. note 40 to this subchapter
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 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