2-Cloroethylphosphonic acid

CAS 16672-87-0

US productionNot reported

Import value, 2024$16M

Top sourceChina 84%

This chemical is not on EPA’s Toxic Substances Control Act inventory, the list behind EPA’s production survey.

Production is reported production, not a complete census of factories. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 293159 · basket

These shares come from HS customs code 293159, which covers 10 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries

Country of origin for US imports, from Census customs data (2024).

CN 84%ChinaCA 12%CanadaDE 1%GermanyCH 1%SwitzerlandAM 1%Armenia

United Kingdom
India
Poland
Ukraine
Norway
Israel
Slovakia

Why It Matters

No EPA sector or FDA product records name a use for this chemical.

Chemical Identity

CAS16672-87-0

PubChem CIDNot recorded

DTXSIDDTXSID7024085

FormulaC2H6ClO3P

Mol. Weight144.49 g/mol

SMILESOP(O)(=O)CCCl

Data Sources

EPA CompTox (DSSTox) · DTXSID7024085Retrieved 2026-04-29
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

2-Cloroethylphosphonic acid (CAS 16672-87-0) https://chemicalindependence.com/chemical/16672-87-0/ EPA CompTox (DSSTox): 16672-87-0. Retrieved 2026-04-29. https://comptox.epa.gov/dashboard/chemical/details/DTXSID7024085 US Census international trade: HS 293159 for CAS 16672-87-0. Reporting year: 2024. https://usatrade.census.gov/