Dimethyl methylphosphonate

CAS 756-79-6

Used in 2 industrial sectors tracked by the EPA.

US production17.7K lb

Import value, 2024$783K

Import volumeCBI

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

Top sourceChina 80%

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. Production reporting year: 2023.

Where It Comes From

Customs basis: HS 293141 · exact

EPA reports by year

2023: US production 17.7K lb · Imports Confidential
2019: US production Confidential · Imports Confidential

Source Countries

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

CN 80%ChinaCA 12%CanadaDE 8%Germany

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

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

Palmer Holland

Special Materials

Why It Matters

Sectors

Plastics & RubberCore 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.

•Flame retardant in All Other Chemical Product and Preparation ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
•Intermediate in All Other Basic Organic Chemical Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product

Chemical Identity

CAS756-79-6

PubChem CID12958

DTXSIDDTXSID0020494

FormulaC3H9O3P

Mol. Weight124.08 g/mol

SMILESCOP(=O)(C)OC

Data Sources

EPA CompTox (DSSTox) · DTXSID0020494Retrieved 2026-04-06
PubChem · compound 12958Retrieved 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

← Back to Dashboard ← Back to Plastics & Rubber

Brief citations

Dimethyl methylphosphonate (CAS 756-79-6) https://chemicalindependence.com/chemical/756-79-6/ EPA CompTox (DSSTox): DTXSID0020494. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID0020494 PubChem: 12958. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/12958 EPA Chemical Data Reporting: 756-79-6. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 756-79-6. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 293141 for CAS 756-79-6. Reporting year: 2024. https://usatrade.census.gov/