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
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
• 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