Heptafluoropentene
Heptafluoropentene acts as a deposition precursor in chemical vapor deposition for fluorocarbon films. Classified HTS 2903.59.90.00 as unsaturated fluorinated acyclic hydrocarbon per Chapter 29 scope. Pure compound status confirmed by spectroscopic analysis.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If containing iodine substituents
Iodofluorocarbons have separate statistical reporting categories.
If cyclic derivatives rather than acyclic
Ring structures shift to heterocyclic compounds chapter.
If imported with CVD reactor base machines
Parts integral to semiconductor manufacturing machines classified with machinery.
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Import Tips & Compliance
• Submit process gas specification sheets showing moisture <10 ppm
• Include leak test certificates for cylinders per CGA C-6 standards
• Declare CVD manufacturing end-use to qualify for potential duty exemptions
Related Products under HTS 2903.59.90.00
Perfluorobutene (C4F8)
Perfluorobutene is an unsaturated fluorinated acyclic hydrocarbon used primarily in plasma etching processes for semiconductor manufacturing. It falls under HTS 2903.59.90.00 as a halogenated derivative of hydrocarbons, specifically an unsaturated fluorinated derivative of acyclic hydrocarbons, not elsewhere specified. This chemically defined organic compound meets Chapter 29 note (a) for separate compounds.
Perfluoro-1-butene
Perfluoro-1-butene is a fully fluorinated C4 alkene used in chemical synthesis and as a reactive intermediate for fluoropolymer production. Classified under HTS 2903.59.90.00 as an 'other' unsaturated fluorinated derivative of acyclic hydrocarbons per Chapter 29 scope. Its complete fluorination distinguishes it from partially halogenated hydrocarbons.
1H-Pentafluoropropene (HFO-1234yf)
HFO-1234yf is a low-GWP hydrofluoroolefin refrigerant used in automotive air conditioning systems as a replacement for HFC-134a. It qualifies under HTS 2903.59.90.00 as an unsaturated fluorinated derivative of acyclic hydrocarbons with hydrogen substitution. Meets Chapter 29 definition for halogenated organic compounds.
Perfluoropentene (C5F10)
Perfluoropentene serves as a specialty gas for plasma cleaning and etching in microelectronics fabrication. Falls under HTS 2903.59.90.00 as an unsaturated fluorinated acyclic hydrocarbon per Chapter 29 note (a). Its complete perfluorination excludes it from partially halogenated hydrocarbon classifications.
Trifluoroethylene (HFC=CF2)
Trifluoroethylene is a fluorinated monomer used in copolymer production for specialty elastomers and electronic materials. Classified under HTS 2903.59.90.00 as an unsaturated fluorinated acyclic hydrocarbon derivative. Chapter 29 note (a) applies to this separate chemically defined compound.
Pentafluoropropene (C3F6)
Pentafluoropropene functions as an etching gas in semiconductor manufacturing and as a reactive intermediate. It meets HTS 2903.59.90.00 criteria as an 'other' unsaturated fluorinated acyclic hydrocarbon. Excluded from colorants, enzymes, or fuels per Chapter 29 exclusion notes.