Butyl Methylphosphinate from Mexico
Butyl methylphosphinate is a non-halogenated organo-phosphorus compound featuring a phosphorus atom bonded to a butyl group and a methyl group, classified under HTS 2931.49.0015 as specified. It serves as a key intermediate in synthesizing phosphorus-based flame retardants and agrochemicals.
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
• Verify chemical purity via Certificate of Analysis (CoA) to confirm classification under 2931.49.0015; ensure SDS includes phosphinate structure details
• Obtain EPA pre-manufacture notice if used in new chemical formulations