1,3-Naphthalenedisulfonic acid, 7-[2-(4-amino-2-methylphenyl)diazenyl]-

CAS 2494-93-1

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 volumeZero

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 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.

Archroma Management Gmbh · CH Switzerland

Archroma U.S

Why It Matters

Sectors

Textiles

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 Synthetic Dye and Pigment Manufacturing (100%)Processing as a reactant

Chemical Identity

CAS2494-93-1

PubChem CIDNot recorded

DTXSIDDTXSID6062466

FormulaC17H15N3O6S2

Mol. Weight421.44 g/mol

SMILESCC1=C(C=CC(N)=C1)N=NC1=CC2=C(C=C(C=C2C=C1)S(O)(=O)=O)S(O)(=O)=O

Data Sources

EPA TSCA InventoryRetrieved 2026-04-29
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-Naphthalenedisulfonic acid, 7-[2-(4-amino-2-methylphenyl)diazenyl]- (CAS 2494-93-1) https://chemicalindependence.com/chemical/2494-93-1/ EPA TSCA Inventory: CAS 2494-93-1. Retrieved 2026-04-29. https://www.epa.gov/tsca-inventory EPA Chemical Data Reporting: 2494-93-1. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 2494-93-1. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting