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
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
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