Procaine Hydrochloride from Canada
Procaine hydrochloride, an ester salt of p-aminobenzoic acid, serves as a local anesthetic drug and exemplifies aromatic oxygen-function amino-acid salts. Classified under HTS 2922.49.26.00 due to its chemical definition as a drug substance with carboxylic ester and amino groups. It aligns with Chapter 29 notes for salts of acid-function compounds.
Duty Rate — Canada → United States
100%
Rate breakdown
9903.04.6093.5%Pharmaceuticals: 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
• Label as USP-grade with CAS number (51-05-8); include pharmacopeia certificates to confirm drug status
• Document ester-salt structure to prevent reclassification; common issue is declaring as base form only
• For frozen shipments, note stabilizer additions per Chapter 29(g) to avoid duty disputes