Guaifenesin USP Powder from Mexico
Pharmaceutical-grade guaifenesin powder meeting USP standards, used as an expectorant in cough syrup formulations. This aromatic ether-alcohol falls under HTS 2909.49.0500 as a chemically defined separate organic compound. It is supplied in bulk for pharmaceutical manufacturing.
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
• Provide Certificate of Analysis (CoA) and USP compliance documentation to verify purity >99%
• Ensure FDA Drug Master File (DMF) registration for active pharmaceutical ingredient importation
• Avoid misclassification as finished dosage form; bulk powder must not be tableted or encapsulated