4-Nitrophenyl Chloroacetate from Canada
This ester features both nitro and chloro groups derived from chloroacetic acid (heading 2912), used in pharmaceutical synthesis. HTS 2913.00.50.00 applies to its multiply-substituted structure. Common intermediate for acetaminophen production.
Duty Rate — Canada → United States
15.5%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Pharma-grade requires >98% purity with heavy metal limits; include HPLC certificate
• Labile chloro group requires moisture-proof packaging
• Ester classification upheld only if stable; hydrolysis products go to acids