Research Grade Butyl Methylphosphinate from Mexico
Ultra-pure butyl methylphosphinate (>99.5%) for laboratory synthesis of phosphinate polymers, specifically under HTS 2931.49.0015 as non-halogenated organo-phosphorus compound. Supplied in small research quantities with CoA.
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
• Include end-use statement for research exemption from certain registrations; package under 1L for lab exemption thresholds
• Verify no water dissolution exceeding note 2(d) limits