Iron hydroxide oxide

Drug ingredient

CAS 20344-49-4

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

FeHO₂88.8 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$218M

Top sourceChina 38%

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 282110 · basket

EPA reports by year

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

These shares come from HS customs code 282110, which covers 7 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).

CN 38%ChinaDE 33%GermanyBR 9%BrazilIN 8%IndiaIT 5%Italy

Czech Republic
Spain
South Korea
United Kingdom
Norway
Taiwan
Mexico
South Africa
Poland
Austria
Singapore
Egypt
Netherlands

EPA-registered manufacturers (3)

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

Befesa Holding Us

Ecolab

Hempel (Usa)

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.

Sensient Colors

EPA-registered importers (5)

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

Sika Ag · CH Switzerland

Nippon Paint Automotive Americas

Pht International

Pigments Services

Sika

Why It Matters

Sectors

HealthAgricultureConstructionMetals & MiningPlastics & RubberConsumer ProductsPaints & CoatingsPaper & PrintingCore Chemicals

Downstream Uses

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

•Velphoro

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 8 sectors as 2 functional roles.

•Pigment in Paint and Coating Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
•Pigment in Construction (10%)Processing—incorporation into formulation, mixture, or reaction product
•Pigment in Wholesale and Retail Trade (1%)Processing—incorporation into formulation, mixture, or reaction product
•Pigment in Printing Ink Manufacturing (0%)Processing—incorporation into formulation, mixture, or reaction product
•Pigment in Custom Compounding of Purchased Resins (3%)Processing—incorporation into formulation, mixture, or reaction product
•Pigment in All Other Chemical Product and Preparation Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
•Ion exchange agent in Plastics Material and Resin Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
•Pigment in Non-metallic Mineral Product Manufacturing (includes clay, glass, cement, concrete, lime, gypsum, and other non-metallic mineral product manufacturing) (100%)Processing—incorporation into article

Chemical Identity

CAS20344-49-4

PubChem CID9793696

DTXSIDDTXSID3042057

FormulaFeHO2

Mol. Weight88.85 g/mol

SMILES[OH-].[O-2].[Fe+3]

Data Sources

EPA CompTox (DSSTox) · DTXSID3042057Retrieved 2026-04-06
PubChem · compound 9793696Retrieved 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

Iron hydroxide oxide (CAS 20344-49-4) https://chemicalindependence.com/chemical/20344-49-4/ EPA CompTox (DSSTox): DTXSID3042057. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID3042057 PubChem: 9793696. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/9793696 EPA Chemical Data Reporting: 20344-49-4. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 20344-49-4. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 282110 for CAS 20344-49-4. Reporting year: 2024. https://usatrade.census.gov/