Sodium borohydride (Na(BH4))

CAS 16940-66-2

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

BH₄Na37.8 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$31M

Top sourceChina 29%

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 285000 · basket

EPA reports by year

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

These shares come from HS customs code 285000, which covers 58 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 29%ChinaDE 29%GermanyJP 22%JapanTW 3%TaiwanIN 2%India

Canada
Russia
Slovenia
Hong Kong
Switzerland
Lithuania
Czech Republic
Spain
Israel
Australia

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.

Ascensus Specialties

EPA-registered importers (1)

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

Cellmark Usa

Why It Matters

Sectors

HealthTextilesPaper & PrintingCore 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

Used in 4 sectors as 3 functional roles.

•Bleaching agent in Textiles, apparel, and leather manufacturingProcessing as a reactant
•Reducing agent in Pharmaceutical and Medicine ManufacturingProcessing as a reactant
•Bleaching agent in Paper ManufacturingProcessing as a reactant
•Intermediate in All Other Basic Inorganic Chemical ManufacturingProcessing as a reactant

Chemical Identity

CAS16940-66-2

PubChem CID4311764

DTXSIDDTXSID80893977

FormulaBH4Na

Mol. Weight37.84 g/mol

SMILES[BH4-].[Na+]

Data Sources

EPA CompTox (DSSTox) · DTXSID80893977Retrieved 2026-04-06
PubChem · compound 4311764Retrieved 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

Sodium borohydride (Na(BH4)) (CAS 16940-66-2) https://chemicalindependence.com/chemical/16940-66-2/ EPA CompTox (DSSTox): DTXSID80893977. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID80893977 PubChem: 4311764. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/4311764 EPA Chemical Data Reporting: 16940-66-2. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 16940-66-2. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 285000 for CAS 16940-66-2. Reporting year: 2024. https://usatrade.census.gov/