Niobium oxide (Nb2O5)

CAS 1313-96-8

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

Nb₂O₅265.8 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 value, 2024$123M

Top sourceBrazil 32%

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 282590 · basket

EPA reports by year

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

These shares come from HS customs code 282590, which covers 34 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).

BR 32%BrazilTR 15%TurkeyCN 9%ChinaVN 8%VietnamKR 8%South Korea

Ireland
Mexico
Spain
Belgium
Switzerland
Trinidad and Tobago
Hong Kong

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.

Ati

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.

Global Advanced Metals Usa

EPA-registered importers (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

Used in 1 sector as 2 functional roles.

•Intermediate in Primary Metal Manufacturing (100%)Processing as a reactant
•Alloys in Primary Metal Manufacturing (100%)Processing as a reactant

Chemical Identity

CAS1313-96-8

PubChem CID9903420

DTXSIDDTXSID20893850

FormulaNb2O5

Mol. Weight265.81 g/mol

SMILES[O-2].[O-2].[O-2].[O-2].[O-2].[Nb+5].[Nb+5]

Data Sources

EPA CompTox (DSSTox) · DTXSID20893850Retrieved 2026-04-06
PubChem · compound 9903420Retrieved 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

Niobium oxide (Nb2O5) (CAS 1313-96-8) https://chemicalindependence.com/chemical/1313-96-8/ EPA CompTox (DSSTox): DTXSID20893850. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID20893850 PubChem: 9903420. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/9903420 EPA Chemical Data Reporting: 1313-96-8. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 1313-96-8. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 282590 for CAS 1313-96-8. Reporting year: 2024. https://usatrade.census.gov/