99% Pure DMMP Flame Retardant Grade from China
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.
Duty Rate — China → Canada
Import Tips
• 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