O-2-(Dimethylamino)ethyl Hydrogen Methylphosphonite from Mexico
This is a specific non-halogenated organo-phosphorus compound featuring a phosphonite group linked to a dimethylaminoethyl chain, classified under HTS 2931.49.00.08 as it matches the exact chemical structure described for phosphonites with dialkylamino substituents. It serves as a key intermediate in synthesizing phosphorus-based ligands for catalysis.
Duty Rate — Mexico → United States
110%
Rate breakdown
9903.04.6096.3%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
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 detailed chemical analysis certificates (COA) confirming the exact phosphonite structure and alkyl chain lengths to avoid misclassification
• Ensure SDS includes safety data for phosphorus compounds; common pitfall is inadequate hazard labeling during transport
• Verify purity levels >95% as impurities may trigger reclassification under general organo-inorganic headings