Ethyl 5-oxo-1-phenyl-1H-pyrazole-3-carboxylate from Mexico
Pyrazole carboxylate ester intermediate for photographic dye-formers and developers. The unfused pyrazole ring with aromatic modification qualifies under HTS 2933.19.30.95.
Duty Rate — Mexico → United States
16.5%
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 esterification certificates confirming Chapter 29 note A ester classification rules
• Include HPLC purity reports (>95%) for statistical reporting requirements
• Ensure proper venting for ethyl ester volatile compound shipments