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
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Crystallinity confirmed by XRD; amorphous forms risk mixture classification
• Declare water content <1% to avoid solvent dissolution scrutiny