Tungsten oxide

CAS 39318-18-8

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

O₃W-₆231.8 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.

Import volumeZero

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 Zero
2019: US production Confidential · Imports Confidential

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.

Global Tungsten &Amp; Powders

Why It Matters

Sectors

Metals & Mining

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 Primary Metal Manufacturing (100%)Processing as a reactant

Chemical Identity

CAS39318-18-8

PubChem CID162372

DTXSIDDTXSID70892257

FormulaO3W-6

Mol. Weight231.84 g/mol

SMILES[O-2].[O-2].[O-2].[W]

Data Sources

EPA CompTox (DSSTox) · DTXSID70892257Retrieved 2026-04-06
PubChem · compound 162372Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04

← Back to Dashboard ← Back to Metals & Mining

Brief citations

Tungsten oxide (CAS 39318-18-8) https://chemicalindependence.com/chemical/39318-18-8/ EPA CompTox (DSSTox): DTXSID70892257. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID70892257 PubChem: 162372. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/162372 EPA Chemical Data Reporting: 39318-18-8. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 39318-18-8. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting