HFC-143 High-Purity Research Grade from Japan
99.999% pure 1,1,2-trifluoroethane (HFC-143) for chemical research and laboratory synthesis applications. Meets ACS reagent specifications while remaining classified under HTS 2903.44.10.30 as the base organic compound. Used in fluorocarbon reaction mechanism studies and analytical standards.
Duty Rate — Japan → United States
12.5%
Rate breakdown
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
• Small quantity research imports (<25kg/year) may qualify for EPA de minimis exemption from HFC quotas
• Include institutional end-user statement and SDS with GC-MS purity analysis for customs clearance
• Avoid declaring as 'commercial refrigerant' which triggers stricter industrial quotas and documentation