O-Methyl N,N-Diethyl Phosphoramidocyanidate from Mexico
A chemically defined organo-phosphorus compound with O-methyl (C1 alkyl) and N,N-diethyl groups in the phosphoramidocyanidate configuration, precisely matching HTS 2931.49.00.05 criteria. As a non-halogenated organo-inorganic derivative, it qualifies under Chapter 29 note (a) for separate organic compounds.
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
• Include Safety Data Sheets (SDS) and CAS registry numbers to confirm chemical identity and prevent reclassification
• Verify alkyl chain compliance (O-alkyl ≤C10, dialkyl limited to methyl/ethyl/n-propyl/isopropyl) through NMR or GC-MS analysis
• Watch for CWC dual-use concerns; may require Commerce Department export license validation for import