Phosphonic acid, reaction products with maleic anhydride, sodium salts

CAS 180513-31-9

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.

Top sourceNo public record

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

EPA reports by year

2023: US production Confidential · Imports Confidential
2019: US production 1.0M lb · Imports 142.6K lb

EPA-registered manufacturers (3)

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

Italmatch Chemicals Spa · IT Italy

Italmatch Usa

Minerals Technologies

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.

Italmatch Chemicals Spa · IT Italy

Why It Matters

Sectors

Metals & MiningCore 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.

•Absorbent in All Other Basic Organic Chemical Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
•Chelating agent in All Other Basic Organic Chemical Manufacturing (50%)Processing—incorporation into formulation, mixture, or reaction product
•Chelating agent in Primary Metal Manufacturing (100%)Processing—incorporation into article

Chemical Identity

CAS180513-31-9

PubChem CIDNot recorded

DTXSIDDTXSID40107224

FormulaNot recorded

Mol. WeightNot recorded

SMILESNot recorded

Data Sources

EPA CompTox (DSSTox) · DTXSID40107224Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04

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Brief citations

Phosphonic acid, reaction products with maleic anhydride, sodium salts (CAS 180513-31-9) https://chemicalindependence.com/chemical/180513-31-9/ EPA CompTox (DSSTox): DTXSID40107224. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID40107224 EPA Chemical Data Reporting: 180513-31-9. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 180513-31-9. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting