Pharma-Grade Dimethyl Propylphosphonate from Mexico
Pharmaceutical intermediate grade dimethyl propylphosphonate meeting USP standards for drug synthesis. HTS 2931.42.00.00 classification as pure organo-inorganic phosphorus compound, not excluded under Chapter notes.
Duty Rate — Mexico → United States
13.7%
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 FDA-compliant COA and DMF if applicable; declare 'not for direct human use' to avoid Chapter 30 pharma exclusions