Phenobarbital Sodium Powder from Canada
The sodium salt of phenobarbital, used in injectable formulations and as an intermediate in pharmaceutical manufacturing. Classified under HTS 2933.54.00.00 as a salt of barbituric acid derivatives per Chapter 29 notes.
Duty Rate — Canada → United States
100%
Rate breakdown
9903.04.6096.3%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
• Include salt formation documentation to justify classification under 2933.54
• Verify stability data as sodium salts may have different storage requirements
• Label clearly as 'not for retail sale' to prevent Chapter 30 reclassification