DMMP for Polyurethane Foam Production
Specialty dimethyl methylphosphonate grade optimized for reactive flame retardancy in flexible polyurethane foams, classified under HTS 2931.41.00.00 as it remains a pure non-halogenated organo-phosphorus derivative. It reacts during foam polymerization without altering its chemical identity.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If sulfur content dominates over phosphorus linkage
Organo-sulfur compounds in 2930 take precedence if multiple heteroatoms present.
If classified by phosphonic acid function if hydrolyzed form
Phosphonic/phosphinic acids fall under 2919 oxygen-function carboxylic derivatives.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Provide end-use statement to CBP for verification; ensure no added odorants/emetics per Chapter note (g); segregate from halogenated chemicals during shipping
Related Products under HTS 2931.41.00.00
Dimethyl Methylphosphonate (DMMP)
Dimethyl methylphosphonate (DMMP) is a non-halogenated organo-phosphorus compound with the chemical formula CH3PO(OCH3)2, classified under HTS 2931.41.00.00 as a specific organo-inorganic derivative. It is a colorless liquid used primarily as a flame retardant additive and chemical intermediate.
99% Pure DMMP Flame Retardant Grade
High-purity (99%) dimethyl methylphosphonate is a key flame retardant precursor for polyurethane foams and textiles, fitting HTS 2931.41.00.00 due to its specific organo-phosphorus structure without halogens. It serves as a stable, low-toxicity intermediate in polymer manufacturing.
Industrial DMMP Chemical Intermediate
Dimethyl methylphosphonate in industrial bulk packaging is used as a phosphorylating agent in pharmaceutical synthesis and pesticides, precisely matching HTS 2931.41.00.00 for non-halogenated organo-phosphorus compounds. Its role as a building block ensures classification as a separate chemically defined compound.
Laboratory Grade Dimethyl Methylphosphonate
High-assay DMMP for research and analytical labs, supplied in small quantities, falls under HTS 2931.41.00.00 as a chemically defined non-halogenated organo-phosphorus compound per Chapter 29 scope. Used in NMR spectroscopy and synthetic organic chemistry.