Diflunisal from Mexico
Diflunisal is a difluorophenyl derivative of salicylic acid, NSAID with carboxylic acid and phenolic oxygen functions. Pure aromatic drug classified under HTS 2918.99.3000. Used for arthritis pain relief.
Duty Rate — Mexico → United States
6.5%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Verify fluoride content via 19F-NMR spectroscopy
• Confirm absence of diflunisal dimer impurities
• Maintain <25°C storage to prevent decarboxylation