HCFC-141b (1,1-Dichloro-1-fluoroethane)
HCFC-141b is a hydrochlorofluorocarbon used primarily as a blowing agent in polyurethane foam production and as a solvent for cleaning electronics. It is a halogenated derivative of acyclic hydrocarbons containing both chlorine and fluorine, specifically dichlorofluoroethane, classified under HTS 2903.73.01.00 due to its chemical structure with two different halogens.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported as a formulated cleaning solvent mixture
Mixtures containing HCFC-141b with other solvents or additives for specific cleaning applications fall under prepared chemical preparations rather than pure compounds.
If containing different halogen combinations
Other halogenated acyclic hydrocarbons with varying chlorine/fluorine ratios are classified under the residual provision for halogenated derivatives.
If when imported as organic composite solvents
Blends of HCFC-141b with other organic solvents for industrial degreasing are classified as organic composite solvents.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Verify compliance with Montreal Protocol phase-out schedules and EPA import restrictions on ozone-depleting substances
• Include Safety Data Sheets (SDS) and purity certificates to confirm chemical identity and meet HTS classification requirements
• Check for country-specific quotas as HCFC imports face strict volume limitations and allocation certificates
Related Products under HTS 2903.73.01.00
HCFC-141 (Dichlorofluoroethane Blowing Agent)
Technical grade HCFC-141 serves as an industrial blowing agent for rigid polyurethane foams in insulation panels and refrigeration equipment. As a pure dichlorofluoroethane isomer, it matches the exact chemical specification of HTS 2903.73.01.00 for halogenated acyclic hydrocarbons with multiple halogens.
1,1-Dichloro-1-fluoroethane (R-141b)
R-141b is the refrigerant designation for this dichlorofluoroethane compound, used in precision cleaning of metal parts and as a foam expansion agent. Its classification under HTS 2903.73.01.00 reflects its status as a separate chemically defined organic compound with two different halogens on an acyclic hydrocarbon chain.
HCFC-141b Technical Grade 99.9% Pure
High-purity HCFC-141b (99.9%) is supplied for manufacturing insulated shipping containers and building insulation panels. This separate chemically defined compound qualifies for HTS 2903.73.01.00 as it contains both chlorine and fluorine halogens on an acyclic ethane backbone without additional functional groups.
Dichlorofluoroethane HCFC-141b Cylinder
HCFC-141b packaged in 100 lb recovery cylinders for industrial foam production and solvent recovery systems. The pure compound remains classified under HTS 2903.73.01.00 as solvent transport doesn't change its chemically defined organic compound status per Chapter 29 note (e).