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Magnesium carbonate (1:1)

Drug ingredient

CAS 546-93-0

This drug ingredient has classified U.S. production volumes. EPA withholds the number as confidential business information.

Molecular structure of 546-93-0
1 Mg²⁺
US productionCBI
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
EPA-registered manufacturers (2)
Minerals Technologies
Vibrantz Technologies
Domestic parents -- activity not disclosed (6)
Avient
Blachford
BP
Corning Incorporated, Blacksburg Plant
Sicer Usa
Show all 6
Smalticeram Usa
EPA-registered importers (10)
Akrochem
Bic Usa
Chemalloy
Chemical Distribution Network
Corning Incorporated
Show all 10
Hollyfrontier Lsp Us Holding
Lanxess
Mitsuya Boeki Usa
Pyrotek
The Lincoln Electric

Why It Matters

Sectors
HealthEnergyConstructionMetals & MiningPlastics & RubberPaints & CoatingsPaper & PrintingCore Chemicals
Downstream Uses

Appears in 1 drug and cosmetic product listings (FDA).

  • •Magnesite Viscum
FDA Shortage Status
No FDA shortage records

Industrial Uses

Used in 10 sectors as 8 functional roles.

  • •Filler in Non-metallic Mineral Product Manufacturing (includes clay, glass, cement, concrete, lime, gypsum, and other non-metallic mineral product manufacturing) (100%)Processing—incorporation into formulation, mixture, or reaction product
  • •Alloys in Primary Metal Manufacturing (100%)Use—non-incorporative activities
  • •Anti-adhesive/cohesive in Fabricated Metal Product Manufacturing (100%)Use—non-incorporative activities
  • •Binder in All Other Basic Inorganic Chemical ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •Catalyst in All Other Chemical Product and Preparation ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •Lubricating agent in All Other Chemical Product and Preparation Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
  • •Lubricating agent in Petroleum Lubricating Oil and Grease ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •Intermediate in Rubber Product Manufacturing (40%)Processing—incorporation into formulation, mixture, or reaction product
  • •Filler in Machinery ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •Filler in Paint and Coating Manufacturing (100%)Use—non-incorporative activities
  • •Filler in Primary Metal Manufacturing (100%)Processing—incorporation into article
  • •Abrasives in Not Known or Reasonably Ascertainable (100%)Processing—incorporation into formulation, mixture, or reaction product
  • •Filler in Rubber Product Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product

Chemical Identity

CAS546-93-0
PubChem CID11029
DTXSIDDTXSID4049660
FormulaCMgO3
Mol. Weight84.31 g/mol
SMILESC(=O)([O-])[O-].[Mg+2]

Data Sources

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Brief citations

Magnesium carbonate (1:1) (CAS 546-93-0) https://chemicalindependence.com/chemical/546-93-0/ EPA CompTox (DSSTox): DTXSID4049660. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID4049660 PubChem: 11029. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/11029 EPA Chemical Data Reporting: 546-93-0. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 546-93-0. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting