Perfluorobutene (C4F8) from China
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.
Duty Rate — China → United States
Rate breakdown
Import Tips
• Provide detailed chemical composition certificates and Safety Data Sheets (SDS) confirming purity levels and fluorocarbon content
• Ensure compliance with EPA regulations under the Toxic Substances Control Act (TSCA) for fluorinated compounds
• Verify container specifications meet DOT hazardous material transport standards for compressed fluorinated gases