3-Propanephosphonic Acid Dichloride
3-Propanephosphonic acid dichloride, synonymous with propylphosphonic dichloride, is a reactive P-Cl compound used in phosphorylation reactions. It falls under HTS 2931.52.00.00 due to its halogenated organo-phosphorus structure with direct C-P bond. Primarily employed in synthesizing agrochemicals and surfactants.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If methylphosphonic dichloride variant instead of propyl chain
Shorter alkyl chain derivatives are specifically enumerated earlier in 2931.51, taking precedence by numerical order per Chapter Note 3
If esterified form without active P-Cl bonds
Phosphite esters lacking halogenation shift to alcohol derivatives in heading 2909
If purely inorganic phosphorous halides without organic substituent
Absence of carbon-linked phosphorus moves to Chapter 28 inorganic halides
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Import Tips & Compliance
• Declare exact CAS number (16788-52-0) on commercial invoice for verification
• Use UN-approved containers for Class 8 corrosives to prevent spills
• Monitor for REACH-like restrictions if transshipping from EU
Related Products under HTS 2931.52.00.00
Propylphosphonic Dichloride
Propylphosphonic dichloride is a halogenated organo-phosphorus compound with the formula C3H7P(O)Cl2, classified under HTS 2931.52.00.00 as a specific halophosphonate derivative containing phosphorus directly linked to carbon. It serves as a key reagent in organic synthesis for producing phosphonate esters and flame retardants.
n-Propylphosphonic Dichloride
n-Propylphosphonic dichloride is the straight-chain isomer of this dichloride, a colorless liquid reactive towards nucleophiles. Classified in HTS 2931.52.00.00 as it matches the legal definition of halogenated organo-phosphorus compounds in heading 2931. Used in flame retardant production and peptide synthesis.