4-[[4-(Diethylamino)phenyl]methylene]-5-(dimethylamino)-2,4-dihydro-2-phenyl-3H-pyrazol-3-one

CAS 125888-49-5

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.

Top sourceNo public record

At least one company claimed its 2019 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: 2019.

Where It Comes From

EPA reports by year

2019: US production Confidential · Imports Confidential

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.

Eastman Kodak

Why It Matters

Sectors

Consumer Products

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

•Dye in Photographic Film, Paper, Plate, and Chemical Manufacturing (100%)Processing—incorporation into article

Chemical Identity

CAS125888-49-5

PubChem CID54550339

DTXSIDDTXSID801343118

FormulaC22H26N4O

Mol. Weight362.5 g/mol

SMILESCCN(CC)C1=CC=C(C=C1)C=C2C(=NN(C2=O)C3=CC=CC=C3)N(C)C

Data Sources

EPA CompTox (DSSTox) · DTXSID801343118Retrieved 2026-04-06
PubChem · compound 54550339Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2019 · Retrieved 2026-10-04
EPA Chemical Data ReportingReporting year: 2019 · Retrieved 2026-10-04

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Brief citations

4-[[4-(Diethylamino)phenyl]methylene]-5-(dimethylamino)-2,4-dihydro-2-phenyl-3H-pyrazol-3-one (CAS 125888-49-5) https://chemicalindependence.com/chemical/125888-49-5/ EPA CompTox (DSSTox): DTXSID801343118. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID801343118 PubChem: 54550339. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/54550339 EPA Chemical Data Reporting: 125888-49-5. Reporting year: 2019. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 125888-49-5. Reporting year: 2019. https://www.epa.gov/chemical-data-reporting