Trimethylolpropane tris(2-methyl-1-aziridinepropionate)

CAS 64265-57-2

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$1.4B

Top sourceIreland 33%

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 293399 · basket

EPA reports by year

2023: US production Confidential · Imports Confidential
2019: US production Confidential · Imports 241.6K lb

These shares come from HS customs code 293399, which covers 518 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).

IE 33%IrelandCN 26%ChinaIN 11%IndiaDE 9%GermanyIT 4%Italy

Taiwan
Poland
Canada
Ivory Coast
Greece
Hungary
Indonesia
Latvia
Belgium
Slovakia
Czech Republic
Austria
Netherlands
Finland
Denmark
Croatia
Australia
South Africa
Sweden
Hong Kong
Malta
Singapore
Lithuania
Malaysia
Oman
Serbia

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.

Dixie Chemical

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.

Covestro

EPA-registered importers (3)

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

Calumet Specialty Products Partners

Polyaziridine

Stahl Usa

Why It Matters

Sectors

EnergyConstructionTextilesCore 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 4 functional roles.

•Binder in Petroleum Refineries (100%)Processing—incorporation into formulation, mixture, or reaction product
•Polymerization promoter in Textiles, apparel, and leather manufacturing (100%)Processing—incorporation into article
•Intermediate in All Other Basic Organic Chemical Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
•Adhesion/cohesion promoter in Adhesive Manufacturing (100%)Processing as a reactant

Vendor Pricing

$0.08/gA2B Chem LLC

CountryUnited States

Pack$38.00 / 500 g

Purity90%

Vendors8 available

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

7 more vendors

Vendor	Country	$/g	Pack	Purity
Aaron Chemicals LLC	Hong Kong	$0.09	500 g	99%
Angene Chemical	China → Hong Kong	$0.10	500 g	90%
AA BLOCKS	United States	$0.17	100 g	90%
AK Scientific, Inc.	United States	$0.81	100 g	95%
AstaTech (2 weeks)	United States	$1.38	100 g	95%
Angene International Limited	United States	$1.60	100 g	95%
Angene	China → Hong Kong	$4266.67	30 mg	90%

Chemical Identity

CAS64265-57-2

PubChem CID58210222

DTXSIDDTXSID1052327

FormulaC23H39N3O6

Mol. Weight453.6 g/mol

SMILESCCC(COC(=O)CCN1CC1C)(COC(=O)CCN2CC2C)OC(=O)CCN3CC3C

Data Sources

EPA CompTox (DSSTox) · DTXSID1052327Retrieved 2026-04-06
PubChem · compound 58210222Retrieved 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

Trimethylolpropane tris(2-methyl-1-aziridinepropionate) (CAS 64265-57-2) https://chemicalindependence.com/chemical/64265-57-2/ EPA CompTox (DSSTox): DTXSID1052327. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID1052327 PubChem: 58210222. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/58210222 EPA Chemical Data Reporting: 64265-57-2. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 64265-57-2. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 293399 for CAS 64265-57-2. Reporting year: 2024. https://usatrade.census.gov/