3-Chloro-1-butyne from Mexico
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 — Mexico → United States
15.5%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
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