Methylphosphonic Dichloride from China
Methylphosphonic dichloride (CH3P(O)Cl2) contains phosphorus bonded solely to one methyl group and two chlorine atoms, fitting HTS 2930.90.9225's criteria for phosphorus compounds with specified alkyl groups. This reactive intermediate is used in organophosphorus synthesis. No other carbon atoms are present in the core structure.
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
• Ship with stabilizer as required by chapter note (e); unstabilized forms pose safety risks during transport
• Include reaction pathway documentation showing derivation from methylphosphonic acid to confirm heading placement
• Verify no solvent content exceeds transport safety limits per chapter note (e) to avoid reclassification