Triethyl phosphate

CAS 78-40-0

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 (4)

EPA records name a US company for this chemical but do not disclose whether the company made it here or imported it.

Eastman Chemical

Icl Specialty Products North America

Ravago Holdings America

Special Materials

EPA-registered importers (7)

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

Aceto Us

Basf

Huntsman

Icool Usa Incorporated

Show all 7

Lanxess

Wego Chemical Group

Why It Matters

Sectors

ConstructionMetals & MiningPlastics & RubberConsumer ProductsCore 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 7 sectors as 5 functional roles.

•Flame retardant in Wholesale and Retail TradeProcessing—incorporation into formulation, mixture, or reaction product
•Plasticizer in Plastics Material and Resin Manufacturing (50%)Processing—incorporation into formulation, mixture, or reaction product
•Flame retardant in Plastics Material and Resin Manufacturing (100%)Processing—incorporation into article
•Catalyst in All Other Basic Organic Chemical Manufacturing (100%)Processing as a reactant
•Intermediate in Miscellaneous Manufacturing (100%)Processing as a reactant
•Flame retardant in Construction (100%)Processing—incorporation into formulation, mixture, or reaction product
•Intermediate in All Other Basic Organic Chemical Manufacturing (0%)Processing as a reactant
•Flame retardant in OtherProcessing—incorporation into formulation, mixture, or reaction product
•Flame retardant in Plastics Product ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
•Chemical reaction regulator in Plastics Product ManufacturingProcessing—incorporation into formulation, mixture, or reaction product

Vendor Pricing

$0.01/gAaron Chemicals LLC

CountryHong Kong

Pack$5.00 / 500 g

Purity99%

Vendors18 available

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

17 more vendors

Vendor	Country	$/g	Pack	Purity
Angene Chemical	China → Hong Kong	$0.01	500 g	99%
A2B Chem LLC	United States	$0.03	500 g	99%
AA BLOCKS	United States	$0.03	500 g	99%
BLD Pharmatech Co., Limited	United States	$0.04	500 g	99%
Ambeed, Inc.	United States	$0.04	500 g	99%
BLD Pharmatech Ltd.	China	$0.05	500 g	99%
Chemscene	United States	$0.05	1 kg	—
Fluorochem EU	Germany	$0.07	500 g	95%
Fluorochem UK	United Kingdom	$0.07	500 g	95%
MedChemExpress MCE	Sweden	$0.08	500 g	99.95%
AK Scientific, Inc.	United States	$0.09	1 kg	99%
ALFA AESAR	Germany	$0.10	500 g	98%
Angene International Limited	United States	$0.25	500 g	99%
Combi-Blocks, Inc.	United States	$0.25	1 kg	98%
Otava, Ltd.	Ukraine	$2280.00	50 mg	95%
Otava, Ltd. (2 weeks)	Ukraine	$2724.00	50 mg	90%
Angene	China → Hong Kong	$4266.67	30 mg	99%

Chemical Identity

CAS78-40-0

PubChem CID6535

DTXSIDDTXSID8026228

FormulaC6H15O4P

Mol. Weight182.15 g/mol

SMILESCCOP(=O)(OCC)OCC

Data Sources

EPA CompTox (DSSTox) · DTXSID8026228Retrieved 2026-04-06
PubChem · compound 6535Retrieved 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 Construction

Brief citations

Triethyl phosphate (CAS 78-40-0) https://chemicalindependence.com/chemical/78-40-0/ EPA CompTox (DSSTox): DTXSID8026228. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID8026228 PubChem: 6535. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/6535 EPA Chemical Data Reporting: 78-40-0. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 78-40-0. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 291990 for CAS 78-40-0. Reporting year: 2024. https://usatrade.census.gov/