1-Phenyl-5-methyl-3-pyrazolone from Mexico
Pyrazolone coupler intermediate for cyan dye formation in color reversal films. Aromatic pyrazole structure under HTS 2933.19.30 as photographic chemical. Critical for E-6 process transparency films.
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
• Process-specific documentation (E-6 compatibility) strengthens photographic claim
• Purity >99.5% required; HPLC certificates prevent purity-based challenges
• Ship in amber glass to prevent photo-degradation, maintaining chemical integrity