Triisobutyl phosphate

CAS 126-71-6

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$123M

Top sourceChina 66%

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 291990 · basket

EPA reports by year

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

These shares come from HS customs code 291990, which covers 77 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 66%ChinaDE 18%GermanyJP 5%JapanIN 3%IndiaCH 3%Switzerland

Poland
Canada
Taiwan
Belgium
Netherlands
Malaysia
Austria
Spain
Ireland
Mexico
South Korea
Turkey
Czech Republic
Hong Kong

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.

Eastman Chemical

EPA-registered importers (4)

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

Basf Se · DE Germany

Basf

Lanxess

Master Builders Solutions

Why It Matters

Sectors

EnergyTransportationConstructionPlastics & RubberPaints & CoatingsPaper & 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 8 sectors as 5 functional roles.

•Hydraulic fluids in All Other Basic Organic Chemical ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
•Defoamer in Construction (100%)Processing—incorporation into formulation, mixture, or reaction product
•Hydraulic fluids in Petroleum Lubricating Oil and Grease Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
•Defoamer in Adhesive ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
•Intermediate in All Other Basic Organic Chemical Manufacturing (0%)Processing as a reactant
•Defoamer in Transportation Equipment ManufacturingProcessing—incorporation into article
•Plasticizer in ConstructionProcessing—incorporation into article
•Dye in Paper ManufacturingProcessing—incorporation into article
•Defoamer in Paint and Coating ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
•Defoamer in Non-metallic Mineral Product Manufacturing (includes clay, glass, cement, concrete, lime, gypsum, and other non-metallic mineral product manufacturing)Processing—incorporation into formulation, mixture, or reaction product

Vendor Pricing

$0.05/gChemscene

CountryUnited States

Pack$53.00 / 1 kg

PurityNot recorded

Vendors9 available

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

8 more vendors

Vendor	Country	$/g	Pack	Purity
Synthonix	United States	$0.07	1 kg	95%
Fluorochem UK	United Kingdom	$0.13	100 g	95%
A2B Chem LLC	United States	$0.16	25 g	98%
AA BLOCKS	United States	$0.20	25 g	98%
AK Scientific Specialized	United States	$0.22	500 g	95%
Combi-Blocks, Inc.	United States	$0.25	1 kg	98%
AK Scientific, Inc.	United States	$0.30	500 g	98%
Labotest KG	Germany	$217.80	5000 mg	90%

Chemical Identity

CAS126-71-6

PubChem CID31355

DTXSIDDTXSID8040698

FormulaC12H27O4P

Mol. Weight266.31 g/mol

SMILESCC(C)COP(=O)(OCC(C)C)OCC(C)C

Data Sources

EPA CompTox (DSSTox) · DTXSID8040698Retrieved 2026-04-06
PubChem · compound 31355Retrieved 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

Triisobutyl phosphate (CAS 126-71-6) https://chemicalindependence.com/chemical/126-71-6/ EPA CompTox (DSSTox): DTXSID8040698. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID8040698 PubChem: 31355. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/31355 EPA Chemical Data Reporting: 126-71-6. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 126-71-6. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 291990 for CAS 126-71-6. Reporting year: 2024. https://usatrade.census.gov/