Benzenepropanoic acid, 3-(1,1-dimethylethyl)-4-hydroxy-5-[2-(2-nitrophenyl)diazenyl]-, methyl ester

CAS 134440-55-4

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 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.

Where It Comes From

EPA reports by year

2023: US production Confidential · Imports Confidential
2019: US production Confidential · Imports Zero

EPA-registered manufacturers (2)

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

Basf

Why It Matters

Sectors

Core 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

•Intermediate in All Other Basic Organic Chemical ManufacturingProcessing as a reactant

Chemical Identity

CAS134440-55-4

PubChem CID135675018

DTXSIDDTXSID10888957

FormulaC20H23N3O5

Mol. Weight385.4 g/mol

SMILESCC(C)(C)C1=C(C(=CC(=C1)CCC(=O)OC)N=NC2=CC=CC=C2[N+](=O)[O-])O

Data Sources

EPA CompTox (DSSTox) · DTXSID10888957Retrieved 2026-04-06
PubChem · compound 135675018Retrieved 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

Benzenepropanoic acid, 3-(1,1-dimethylethyl)-4-hydroxy-5-[2-(2-nitrophenyl)diazenyl]-, methyl ester (CAS 134440-55-4) https://chemicalindependence.com/chemical/134440-55-4/ EPA CompTox (DSSTox): DTXSID10888957. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID10888957 PubChem: 135675018. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/135675018 EPA Chemical Data Reporting: 134440-55-4. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 134440-55-4. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting