Procaine Hydrochloride from Mexico
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 — Mexico → United States
100%
Rate breakdown
9903.04.6093.5%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
9903.05.900%Articles of aluminum, of steel or of copper or derivative aluminum or steel articles; passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans and cargo vans) and light trucks; parts of passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans and cargo vans) and light trucks; medium- and heavy-duty vehicles; parts of medium- and heavy-duty vehicles; wood products; patented pharmaceutical articles; and semiconductor articles, as provided in subdivision (f) of U.S. note 52 to this subchapter
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