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

9903.03.0110%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

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