Homophthalic Acid from Canada
Homophthalic acid is a cyclic aromatic monocarboxylic acid used in organic synthesis and pharmaceutical intermediates. Falls under HTS 2916.39.79.00 as 'other' aromatic acid. Chemically defined structure meets chapter requirements.
Duty Rate — Canada → United States
16.5%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Include NMR/GC purity certificates for research chemical imports
• Declare intended synthesis use to avoid controlled precursor scrutiny
• Ensure no metal salts; coordination compounds classify differently per notes