Phenobarbital Intermediate (5-Ethyl-5-phenylbarbituric Acid) from Canada
This barbituric acid derivative serves as key intermediate for phenobarbital synthesis, featuring ethyl and phenyl substitutions on the cyclic amide ring. HTS 2924.29.95.00 covers it as unspecified cyclic amide. DEA List I chemical.
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
• DEA 222 form required; chemical import license; end-user verification mandatory