Magnesium Salicylate Crystals from Mexico
Magnesium salicylate crystals are used in anti-inflammatory medications and as analytical reagents, fitting HTS 2918.21.5000 as other salicylic acid salts. Chapter 29 classification prioritizes the phenol-function carboxylic acid structure over metal content per classification notes.
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
• Crystallinity confirmed by XRD; amorphous forms risk mixture classification
• Declare water content <1% to avoid solvent dissolution scrutiny