99% Pure DMMP Flame Retardant Grade
High-purity (99%) dimethyl methylphosphonate (DMMP) is a non-halogenated organo-phosphorus compound used primarily as a flame retardant precursor for polyurethane foams and textiles. Its chemical structure, CH3PO(OCH3)2, contains phosphorus directly linked to carbon, placing it squarely within heading 29.31 as an organo-inorganic compound. The product is a separate chemically defined organic compound, meeting the scope of Chapter 29.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
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Import Tips & Compliance
• Ensure the product is accompanied by a Safety Data Sheet (SDS) and proper UN classification for transport, as DMMP may be subject to controlled goods regulations
• Declare the 8-digit tariff item 2931.41.00 accurately and be prepared to provide a certificate of analysis to confirm purity and chemical identity
• Verify whether the product requires an import permit under Canada's chemical precursors regulations, as DMMP is a listed precursor
Related Products under Tariff item 2931.41.00
Dimethyl Methylphosphonate (DMMP)
Dimethyl methylphosphonate (DMMP) is a colorless liquid with the chemical formula CH3PO(OCH3)2, classified as a non-halogenated organo-phosphorus compound. As a separate chemically defined organic compound with phosphorus-carbon bonds, it falls under heading 29.31 and specifically under tariff item 2931.41.00. It is used in various industrial applications including as a flame retardant and chemical intermediate.
DMMP for Polyurethane Foam Production
This specialty grade of dimethyl methylphosphonate is optimized for reactive flame retardancy in flexible polyurethane foams. It is a pure non-halogenated organo-phosphorus compound, chemically identical to standard DMMP, and therefore classified under tariff item 2931.41.00. The product's specific application does not alter its chemical classification under Chapter 29.
Industrial DMMP Chemical Intermediate
Industrial bulk dimethyl methylphosphonate is used as a phosphorylating agent in pharmaceutical synthesis and pesticide production. As a non-halogenated organo-phosphorus compound with a defined chemical structure, it is classified under tariff item 2931.41.00. The product is a separate chemically defined organic compound within the scope of Chapter 29.
Laboratory Grade Dimethyl Methylphosphonate
Laboratory grade dimethyl methylphosphonate is a high-assay chemical supplied in small quantities for research and analytical applications. As a separate chemically defined non-halogenated organo-phosphorus compound, it falls under tariff item 2931.41.00. The product is used in NMR spectroscopy and other analytical techniques, but its chemical identity determines its classification.