Phenylphosphonic dichloride

CAS 824-72-6

U.S. production volumes are classified as confidential business information.

US productionCBI

Confidential Business Information. The EPA withholds this volume because publishing it could reveal the reporting company's trade secrets.

Import value, 2024$16M

Top sourceChina 84%

At least one company claimed its 2019 production or import volume for this chemical as confidential, so EPA withholds it.

Why supply is unknown

Production is reported production, not a complete census of factories. US production volume is confidential. Production reporting year: 2019. 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

EPA reports by year

2019: US production Confidential · Imports Confidential

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

EPA-registered importers (1)

Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.

Hexion Holdings

Why It Matters

Sectors

Construction

Downstream UsesNot recorded

FDA Shortage Status

Whether any manufacturer currently reports this drug as in shortage on the FDA Drug Shortages database. "Active Shortage" means at least one presentation has status "current."

No FDA shortage records

Industrial Uses

•Adhesives and sealant chemicals in Wood Product Manufacturing (100%)Processing—incorporation into article

Chemical Identity

CAS824-72-6

PubChem CID69990

DTXSIDDTXSID5044732

FormulaC6H5Cl2OP

Mol. Weight194.98 g/mol

SMILESC1=CC=C(C=C1)P(=O)(Cl)Cl

Data Sources

EPA CompTox (DSSTox) · DTXSID5044732Retrieved 2026-04-06
PubChem · compound 69990Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2019 · Retrieved 2026-10-04
EPA Chemical Data ReportingReporting year: 2019 · Retrieved 2026-10-04
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

Phenylphosphonic dichloride (CAS 824-72-6) https://chemicalindependence.com/chemical/824-72-6/ EPA CompTox (DSSTox): DTXSID5044732. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID5044732 PubChem: 69990. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/69990 EPA Chemical Data Reporting: 824-72-6. Reporting year: 2019. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 824-72-6. Reporting year: 2019. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 293159 for CAS 824-72-6. Reporting year: 2024. https://usatrade.census.gov/