Calcium magnesium hydroxide oxide

CAS 58398-71-3

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

CaH₂MgO₃114.4 g/mol

no molecular structure to draw

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 Confidential · Imports Confidential

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.

Graymont

Why It Matters

Sectors

AgricultureConstructionMetals & MiningPaper & PrintingCore 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 5 sectors as 5 functional roles.

•Dehydrating agent (desiccant) in All Other Chemical Product and Preparation ManufacturingProcessing as a reactant
•Stabilizing agent in ConstructionProcessing as a reactant
•pH regulating agent in Paper ManufacturingProcessing as a reactant
•Flux agent in Primary Metal ManufacturingProcessing as a reactant
•Soil amendments (fertilizers) in Agriculture, Forestry, Fishing and HuntingProcessing as a reactant

Chemical Identity

CAS58398-71-3

PubChem CID13710582

DTXSIDDTXSID9050488

FormulaCaH2MgO3

Mol. Weight114.4 g/mol

SMILES[OH-].[OH-].[O-2].[Mg+2].[Ca+2]

Data Sources

EPA CompTox (DSSTox) · DTXSID9050488Retrieved 2026-04-06
PubChem · compound 13710582Retrieved 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

Calcium magnesium hydroxide oxide (CAS 58398-71-3) https://chemicalindependence.com/chemical/58398-71-3/ EPA CompTox (DSSTox): DTXSID9050488. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID9050488 PubChem: 13710582. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/13710582 EPA Chemical Data Reporting: 58398-71-3. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 58398-71-3. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting