5-Methyl-1-phenyl-3-pyrazolone from Canada
A modified aromatic pyrazolone used in magenta coupler synthesis for color negative films like Kodak Vision stocks. Falls under HTS 2933.19.30 due to its unfused pyrazole ring and specific photographic chemical application. Essential for forming stable dye images during color development.
Duty Rate — Canada → United States
16.5%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Include spectral analysis (NMR, IR) confirming pyrazole ring structure and substitution pattern
• Document supply chain to major film manufacturers to support photographic chemical designation
• Avoid bulk packaging over 25kg; smaller units reinforce specialty chemical status vs commodity organic