Sodium Phenylbutyrate from Canada
Sodium phenylbutyrate is the sodium salt of 4-phenylbutanoic acid, an aromatic saturated acyclic monocarboxylic acid. It falls under HTS 2915.60.10.00 as a salt of an aromatic butanoic acid, fitting Chapter 29 note (C)(1) for inorganic salts of organic acid-function compounds classified with the parent acid. Used primarily in medical treatments for urea cycle disorders.
Duty Rate — Canada → United States
15.5%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Provide certificates of analysis confirming chemical purity and aromatic structure; ensure pharmaceutical-grade documentation for FDA compliance; verify salt formation doesn't alter parent acid classification per Chapter 29 notes