1-Phenyl-5-methyl-3-pyrazolone from Japan
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 — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, 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