Triisopropyl orthoborate

CAS 5419-55-6

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$208M

Top sourceChina 28%

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 292090 · basket

EPA reports by year

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

These shares come from HS customs code 292090, which covers 98 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 28%ChinaKR 17%South KoreaIT 13%ItalyIN 10%IndiaDE 9%Germany

Poland
Switzerland
Ireland
Canada
Lithuania
Netherlands
Brazil
Malaysia
Hungary
Czech Republic
Saudi Arabia
Slovakia
Ukraine
Turkey

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.

Koch Industries

Why It Matters

Sectors

Health

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 Pharmaceutical and Medicine ManufacturingProcessing as a reactant

Vendor Pricing

$0.10/gManchester Organics

CountryUnited Kingdom

Pack$239.71 / 2.5 kg

Purity98%

Vendors9 available

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

8 more vendors

Vendor	Country	$/g	Pack	Purity
Combi-Blocks, Inc.	United States	$0.25	1 kg	95%
A2B Chem LLC	United States	$0.27	1 kg	95%
AA BLOCKS	United States	$0.28	1 kg	95%
Sigma-Aldrich (Rush Stock)	Germany	$0.33	750 g	98%
Sigma-Aldrich	Germany	$0.33	750 g	98%
AstaTech, Inc	United States	$0.45	100 g	95%
Fluorochem UK	United Kingdom	$0.46	100 g	99%
Key Organics Ltd.	United Kingdom	$2.96	25 g	95%

Chemical Identity

CAS5419-55-6

PubChem CID21531

DTXSIDDTXSID7027598

FormulaC9H21BO3

Mol. Weight188.07 g/mol

SMILESB(OC(C)C)(OC(C)C)OC(C)C

Data Sources

EPA CompTox (DSSTox) · DTXSID7027598Retrieved 2026-04-06
PubChem · compound 21531Retrieved 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

← Back to Dashboard ← Back to Health

Brief citations

Triisopropyl orthoborate (CAS 5419-55-6) https://chemicalindependence.com/chemical/5419-55-6/ EPA CompTox (DSSTox): DTXSID7027598. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID7027598 PubChem: 21531. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/21531 EPA Chemical Data Reporting: 5419-55-6. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 5419-55-6. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 292090 for CAS 5419-55-6. Reporting year: 2024. https://usatrade.census.gov/