Trans-HFO-1234ze Isomer
The trans isomer of 1,1,3,3,3-Pentafluoro-2-(trifluoromethyl)-prop-1-ene (HFO-1234ze), a specific stereoisomer used in precision applications like specialty solvents. Classified under HTS 2903.59.10.10 as the named compound per Chapter 29 note (b) for mixtures of isomers. Its acyclic unsaturated fluorinated structure determines the tariff placement.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If cis isomer or unspecified stereochemistry
Other stereoisomers not specifically named fall under residual unsaturated fluorinated hydrocarbon provisions.
If supplied as stabilized solution with anti-dusting agent
Chapter 29 note (g) allows classification here, but stabilized preparations for safety may shift to mixtures in 3824.
If for bulk unsaturated hydrocarbon gases if not fluorinated enough
Light unsaturated hydrocarbons without heavy fluorination sometimes classify under petroleum gases.
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
• Include stereochemical analysis (NMR/chromatography) to confirm trans isomer identity for specific classification
• Label containers clearly distinguishing trans from cis or mixed isomers to prevent reclassification
• Monitor for anti-dumping duties on fluorinated compounds from certain origins
Related Products under HTS 2903.59.10.10
1,1,3,3,3-Pentafluoro-2-(trifluoromethyl)-prop-1-ene
This is a fluorinated alkene classified as an unsaturated fluorinated derivative of acyclic hydrocarbons under HTS 2903.59. It is a specific halogenated hydrocarbon with multiple fluorine substitutions on a three-carbon chain featuring a double bond. The compound falls within Chapter 29 as a separate chemically defined organic compound.
HFO-1234ze Pure Technical Grade
High-purity 1,1,3,3,3-Pentafluoro-2-(trifluoromethyl)-prop-1-ene, also known as HFO-1234ze, used as a low-GWP refrigerant and foam blowing agent. This unsaturated fluorinated hydrocarbon is specifically named in HTS 2903.59.10.10 due to its acyclic structure and halogenation pattern. It meets Chapter 29 criteria for chemically defined organic compounds.
HFO-1234ze with Stabilizer Additive
1,1,3,3,3-Pentafluoro-2-(trifluoromethyl)-prop-1-ene containing a necessary stabilizer for preservation during transport. Per Chapter 29 note (f), it remains classified under HTS 2903.59.10.10 as the base compound with added stabilizer. Used in industrial refrigeration systems.
Research Grade HFO-1234ze
Ultra-high purity 1,1,3,3,3-Pentafluoro-2-(trifluoromethyl)-prop-1-ene for laboratory research and synthesis of fluoropolymers. The specific chemical identity places it under HTS 2903.59.10.10 as a halogenated derivative of acyclic hydrocarbons. Supplied in small cylinders for R&D applications.