1,1,2-Trifluoroethane (HFC-143) Research Chemical from China
1,1,2-Trifluoroethane (HFC-143), a specific isomer listed in HTS 2903.44.10, supplied in lecture bottles for laboratory synthesis and chemical research applications. Its classification follows chapter 29 rules for chemically defined halogenated acyclic hydrocarbons.
Duty Rate — China → United States
16.2%
Rate breakdown
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Small quantities for R&D may qualify for simplified EPA reporting but still need end-use statements
• Declare exact isomer (CAS 430-66-0) to avoid confusion with HFC-143a
• Ensure packaging complies with IATA/49 CFR for air shipment of Division 2.2 gases