Dichlorophosphine (Pure) from Mexico
Dichlorophosphine (HPCl2) is a non-halogenated organo-phosphorus compound despite chlorine on phosphorus, as classification follows Chapter Note excluding only C-halogen/P-halogen derivatives. HTS 2931.49.0080 for other non-halogenated derivatives. Reactive intermediate for phosphine synthesis.
Duty Rate — Mexico → 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
• UN 2845 toxic gas; requires DOT special permit for transport
• Cylinder certification and residual gas pressure documentation mandatory
• Purity analysis distinguishing from alkylchlorophosphines critical