m-Hydroxybenzoic Acid Sodium Salt from Mexico
Sodium m-hydroxybenzoate, the sodium salt of m-hydroxybenzoic acid, classifies with the parent acid under HTS 2918.29.0800 per Chapter 29 note on inorganic salts of organic acids. Used as a preservative intermediate and pH buffer in pharmaceutical formulations.
Duty Rate — Mexico → United States
10%
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
• Include salt formation assay confirming structure; classifies with acid per Chapter 29 note C(1)
• Less hazardous than acid form; declare as 'non-regulated' if pH >5.0 for transport
• Distinguish from sodium salicylate (2918.21 salt) in documentation to avoid duty errors