Methylphosphonic Dichloride
Methylphosphonic dichloride (CH3P(O)Cl2) is a halogenated organo-phosphorus compound used primarily as a chemical intermediate in organic synthesis. It falls under HTS 2931.51.00.00 as a specific halogenated organo-inorganic compound with phosphorus directly linked to carbon and chlorine atoms. This pure, chemically defined compound meets Chapter 29 note (a) for separate organic compounds.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported as a simple phosphorus oxyhalide without methyl group
Lacks the organo-component (carbon-phosphorus bond), classifying as inorganic halogenated phosphorus compounds in Chapter 28.
If for other halogenated organo-phosphorus derivatives not specifically enumerated
If chemically modified beyond pure methylphosphonic dichloride, it falls into the residual 'other' subheading within the same heading.
If dissolved in solvent for transport exceeding Chapter 29 note (e)
Solutions not qualifying as normal transport forms under note (e) are classified as chemical preparations in Chapter 38.
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Import Tips & Compliance
• Obtain export licenses from origin country due to potential dual-use restrictions under Chemical Weapons Convention; ensure proper HAZMAT documentation (UN 2845); verify purity certificates to confirm classification under Chapter 29 note (a)
Related Products under HTS 2931.51.00.00
Methylphosphonic Dichloride 98% Technical Grade
Technical grade methylphosphonic dichloride at 98% purity, containing minor impurities but still a separate chemically defined compound per Chapter 29 note (a). Used in pesticide and flame retardant synthesis. Classified under HTS 2931.51.00.00 due to its specific halogenated organo-phosphorus structure.
Distilled Methylphosphonic Dichloride
High-purity distilled methylphosphonic dichloride, fractionally distilled for research applications in organophosphorus chemistry. It qualifies under HTS 2931.51.00.00 as a halogenated organo-phosphorus derivative with direct C-P linkage. Meets Chapter 29 requirements for chemically defined compounds without excluded preparations.
Methylphosphonic Dichloride with Stabilizer
Methylphosphonic dichloride stabilized with anti-hydrolysis agent for safe transport, per Chapter 29 note (f). Retains classification under HTS 2931.51.00.00 as the principal compound remains chemically defined. Used in pharmaceutical intermediate production.
Research-Grade Methylphosphonic Dichloride
Ultra-pure methylphosphonic dichloride for academic and R&D use in synthesizing phosphonate esters. Classified precisely under HTS 2931.51.00.00 for its halogenated organo-phosphorus profile. Excludes retail preparations per Chapter exclusions.