Dimethyl phosphonate

CAS 868-85-9

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$3M

Top sourceGermany 83%

At least one company claimed its 2023 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: 2023.

Where It Comes From

Customs basis: HS 292021 · exact

EPA reports by year

2023: US production Confidential · Imports Confidential
2019: US production Confidential · Imports Confidential

Source Countries

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

DE 83%GermanyIN 17%India

EPA-registered manufacturers (1)

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

Proviron

Domestic parents -- activity not disclosed (1)

EPA records name a US company for this chemical but do not disclose whether the company made it here or imported it.

Lanxess

EPA-registered importers (3)

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

Lanxess · DE Germany

Harcros Chemicals

Newmarket

Why It Matters

Sectors

EnergyCore Chemicals

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

Used in 2 sectors as 2 functional roles.

•Intermediate in All Other Basic Organic Chemical Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
•Catalyst in Petroleum Lubricating Oil and Grease Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
•Intermediate in Petroleum Lubricating Oil and Grease Manufacturing (100%)Processing as a reactant

Chemical Identity

CAS868-85-9

PubChem CID13361

DTXSIDDTXSID5020493

FormulaC2H7O3P

Mol. Weight110.05 g/mol

SMILESCOP(=O)OC

Data Sources

EPA CompTox (DSSTox) · DTXSID5020493Retrieved 2026-04-06
PubChem · compound 13361Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

Dimethyl phosphonate (CAS 868-85-9) https://chemicalindependence.com/chemical/868-85-9/ EPA CompTox (DSSTox): DTXSID5020493. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID5020493 PubChem: 13361. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/13361 EPA Chemical Data Reporting: 868-85-9. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 868-85-9. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 292021 for CAS 868-85-9. Reporting year: 2024. https://usatrade.census.gov/