1,3-Diazetidine-2,4-dione, 1,3-bis(3-isocyanatomethylphenyl)-

CAS 26747-90-0

Used in 1 industrial sector tracked by the EPA.

US production52.3K lb

Import volumeZero

Import dependency0%

Top sourceNo public record

Production is reported production, not a complete census of factories. 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 52.3K lb · Imports Zero
2019: US production Confidential · Imports Confidential

HS customs code 293399 covers 518 tracked chemicals in total. US Census does not break out this chemical's share, so the country-of-origin mix is not available. EPA CDR reports import dependency at the chemical level separately, shown above.

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.

Vandemark 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.

Jowat

Why It Matters

Sectors

Construction

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 1 sector as 2 functional roles.

•Polymerization promoter in Adhesive Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
•Adhesion/cohesion promoter in Adhesive Manufacturing (100%)Processing as a reactant

Chemical Identity

CAS26747-90-0

PubChem CID93102

DTXSIDDTXSID50885369

FormulaC18H12N4O4

Mol. Weight348.3 g/mol

SMILESCC1=C(C=C(C=C1)N2C(=O)N(C2=O)C3=CC(=C(C=C3)C)N=C=O)N=C=O

Data Sources

EPA CompTox (DSSTox) · DTXSID50885369Retrieved 2026-04-06
PubChem · compound 93102Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04

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Brief citations

1,3-Diazetidine-2,4-dione, 1,3-bis(3-isocyanatomethylphenyl)- (CAS 26747-90-0) https://chemicalindependence.com/chemical/26747-90-0/ EPA CompTox (DSSTox): DTXSID50885369. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID50885369 PubChem: 93102. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/93102 EPA Chemical Data Reporting: 26747-90-0. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 26747-90-0. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting