3-Chloro-1-butyne from Japan
3-Chloro-1-butyne features terminal alkyne unsaturation with propargylic chloride. Rare unsaturated chlorinated acetylenic hydrocarbon under HTS 2903.29.00.00. Specialty intermediate for organometallic coupling reactions.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Provide FTIR confirming C≡C stretch at 2100-2260 cm⁻¹ for triple bond verification
• Pyrophoric potential requires inert atmosphere packaging and UN 3295 labeling
• Extremely low volume; ensure supplier provides reference analytical standards