3-Chloro-1-butyne from China
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 — China → United States
43%
Rate breakdown
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 to this subchapter
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
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