O-Methyl N,N-Diethyl Phosphoramidocyanidate from China
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 — China → United States
100%
Rate breakdown
9903.04.6096.3%Pharmaceuticals Annex IV: patented pharma articles — 100% floor rate
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
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