Trixylyl phosphate

CAS 25155-23-1

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

Import volumeZero

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 Zero
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.

Icl Specialty Products North America

Why It Matters

Sectors

WaterPaints & Coatings

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 2 sectors as 2 functional roles.

•Hydraulic fluids in Utilities (100%)Use—non-incorporative activities
•Flame retardant in Paint and Coating Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product

Vendor Pricing

$1.30/gAngene Chemical

CountryChina (registered: Hong Kong)

Pack$13.00 / 10 g

Purity97%

Vendors10 available

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

9 more vendors

Vendor	Country	$/g	Pack	Purity
Aaron Chemicals LLC	Hong Kong	$5.00	5 g	97%
MedChemExpress MCE	Sweden	$35.09	5 g	98.06%
A2B Chem LLC	United States	$190.30	10 g	97%
AA BLOCKS	United States	$200.80	10 g	97%
Angene International Limited	United States	$386.00	500 mg	98%
AA BLOCKS (1 week)	United States	$4240.00	100 mg	97%
A2B Chem LLC (1 week)	United States	$4240.00	100 mg	97%
Angene	China → Hong Kong	$4266.67	30 mg	97%
Combi-Blocks (back-ordered)	United States	$5300.00	100 mg	95%

Chemical Identity

CAS25155-23-1

PubChem CID19736

DTXSIDDTXSID9026267

FormulaC24H27O4P

Mol. Weight410.4 g/mol

SMILESCC1=CC(=C(C=C1)OP(=O)(OC2=C(C=C(C=C2)C)C)OC3=C(C=C(C=C3)C)C)C

Data Sources

EPA CompTox (DSSTox) · DTXSID9026267Retrieved 2026-04-06
PubChem · compound 19736Retrieved 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

Trixylyl phosphate (CAS 25155-23-1) https://chemicalindependence.com/chemical/25155-23-1/ EPA CompTox (DSSTox): DTXSID9026267. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID9026267 PubChem: 19736. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/19736 EPA Chemical Data Reporting: 25155-23-1. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 25155-23-1. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 291990 for CAS 25155-23-1. Reporting year: 2024. https://usatrade.census.gov/