Sodium Phenylacetate Pharmaceutical Grade from Mexico
Pharmaceutical-grade sodium phenylacetate, the sodium salt of phenylacetic acid, used in treatments for urea cycle disorders and as an ammonia scavenger. Classified in HTS 2916.34.25.00 as a derivative covered by additional U.S. note 3 to section VI, despite being a salt, due to specific U.S. provisions for regulated precursors. Its structure retains the core phenylacetic acid moiety qualifying under the heading.
Duty Rate — Mexico → United States
16.5%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• DEA import permit mandatory; track quota consumption under note 3 to avoid over-import penalties
• Submit GMP certificates and intended use declarations for pharmaceutical applications
• Differentiate from bulk salts that might fall under general chemical mixture headings