Magnesium silicate (Mg(SiO3))

CAS 13776-74-4

Companies reported imports and no US production of this chemical to EPA for 2023.

Molecular structure of 13776-74-4 — 1 Mg²⁺

US productionZero

Import value, 2024$21M

Import volume141.4K lb

Import dependency100%

Top sourceMexico 25%

Production is reported production, not a complete census of factories. Production reporting year: 2023. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Magnesium silicate (Mg(SiO3)) · US import value by year

2013: $18M · Peak 2019: $25M · 2024: $21M · 2025: $16M

Where It Comes From

Customs basis: HS 283990 · basket

EPA reports by year

2023: US production Zero · Imports 141.4K lb
2019: US production Confidential · Imports Confidential

These shares come from HS customs code 283990, which covers 20 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries

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

MX 25%MexicoCA 17%CanadaDE 12%GermanyIT 12%ItalyJP 9%Japan

Malaysia
Denmark
Turkey
Switzerland
Poland
Hong Kong
Czech Republic
Finland
Australia
Spain
Austria

EPA-registered importers (4)

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

Clariant International · CH Switzerland

Resonac Holdings · JP Japan

Clariant

Resonac America

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

•Alloys in Fabricated Metal Product Manufacturing (100%)Processing—incorporation into article

Chemical Identity

CAS13776-74-4

PubChem CID61680

DTXSIDDTXSID70893966

FormulaMgO3Si

Mol. Weight100.39 g/mol

SMILES[O-][Si](=O)[O-].[Mg+2]

Data Sources

EPA CompTox (DSSTox) · DTXSID70893966Retrieved 2026-04-06
PubChem · compound 61680Retrieved 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

Magnesium silicate (Mg(SiO3)) (CAS 13776-74-4) https://chemicalindependence.com/chemical/13776-74-4/ EPA CompTox (DSSTox): DTXSID70893966. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID70893966 PubChem: 61680. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/61680 EPA Chemical Data Reporting: 13776-74-4. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 13776-74-4. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 283990 for CAS 13776-74-4. Reporting year: 2024. https://usatrade.census.gov/