2-(2',4'-Diamino-5'-methylphenylazo)-5-carbethoxyaniline from Canada
A carbethoxy-substituted azo coupler for photographic magenta dye formation with improved keeping properties. The aromatic heterocyclic system participates in chromogenic development reactions. Its specific role in photography qualifies it for HTS 2933.99.24.00.
Duty Rate — Canada → United States
100%
Rate breakdown
9903.04.6093.5%Pharmaceuticals Annex IV: patented pharma articles — 100% floor rate
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Ester-function classification per Chapter 29 note 3(A); provide ester hydrolysis stability data; declare azo coupling efficiency