2,4-Diamino-6-pyrazolone from Mexico
Diaminopyrazolone derivative used as stabilizer in color photographic emulsions. Its unfused pyrazole ring with amino substitutions fits HTS 2933.19.30 photographic chemicals. Prevents dye fading in processed color 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
• Stability test data showing anti-fade performance essential for classification justification
• Avoid generic 'amine' labeling; specify heterocyclic pyrazolone structure prominently
• REACH compliance docs helpful even for US imports to demonstrate quality control