1-Chloro-1,1-Difluoroethane (HCFC-142b) Technical Grade from Japan
Technical grade HCFC-142b (CAS 75-68-3) is a high-purity chlorodifluoroethane used in industrial refrigeration and polyurethane foam production. Classified under HTS 2903.74.01.00 due to its chemical structure as an acyclic hydrocarbon with chlorine and fluorine halogens. Meets Chapter 29 criteria for separate chemically defined organic compounds.
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
• Provide certificate of analysis showing ≥99.9% purity to avoid reclassification as mixtures
• Check current HCFC production and consumption allowances via EPA's annual allocation program
• Label cylinders with UN number 2517 and 'Ozone Depleting Substance' warnings