Molybdenum dioxide

CAS 18868-43-4

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.

Import value, 2024$141M

Top sourceChile 83%

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. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 282570 · narrow

EPA reports by year

2023: US production Confidential · Imports Confidential
2019: US production Confidential · Imports Confidential

These shares come from HS customs code 282570, which covers 3 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).

CL 83%ChileKR 11%South KoreaNL 6%Netherlands

China
India

EPA-registered manufacturers (2)

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

Amg Critical Materials Nv · NL Netherlands

Metallurg

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

•Intermediate in Primary Metal ManufacturingProcessing as a reactant

Vendor Pricing

$0.21/gA2B Chem LLC

CountryUnited States

Pack$106.00 / 500 g

Purity99%

Vendors8 available

Prices reflect listed pack sizes. Small research packs run far above bulk rates.

7 more vendors

Vendor	Country	$/g	Pack	Purity
Combi-Blocks, Inc.	United States	$0.25	1 kg	95%
AA BLOCKS	United States	$0.27	500 g	99%
AK Scientific, Inc.	United States	$1.76	100 g	99%
Sigma-Aldrich (Rush Stock)	Germany	$2.37	50 g	99%
Sigma-Aldrich	Germany	$2.37	50 g	99%
Asinex	Netherlands	$6461.40	100 mg	90%
TimTec, LLC (back-ordered)	United States	$32000.00	15 mg	94%

Chemical Identity

CAS18868-43-4

PubChem CID29320

DTXSIDDTXSID10879986

FormulaMoO2

Mol. Weight127.95 g/mol

SMILESO=[Mo]=O

Data Sources

EPA CompTox (DSSTox) · DTXSID10879986Retrieved 2026-04-06
PubChem · compound 29320Retrieved 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

Molybdenum dioxide (CAS 18868-43-4) https://chemicalindependence.com/chemical/18868-43-4/ EPA CompTox (DSSTox): DTXSID10879986. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID10879986 PubChem: 29320. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/29320 EPA Chemical Data Reporting: 18868-43-4. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 18868-43-4. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 282570 for CAS 18868-43-4. Reporting year: 2024. https://usatrade.census.gov/