2-[(3-Carboxy-2-hydroxynaphthalen-1-yl)diazenyl]-5-chloro-4-methylbenzenesulfonate;manganese

CAS 12238-31-2

U.S. production volumes are classified as confidential business information.

Molecular structure of 12238-31-2 — 1 Mn²⁺

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.

Flint Cps Inks North America

EPA-registered importers (1)

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

H.I.G. Colors

Why It Matters

Sectors

Consumer ProductsPaints & CoatingsPaper & Printing

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 1 functional role.

•Pigment in Printing and Related Support ActivitiesProcessing—incorporation into formulation, mixture, or reaction product
•Pigment in Printing Ink ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
•Pigment in Paint and Coating Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
•Pigment in Wholesale and Retail Trade (1%)Processing—incorporation into formulation, mixture, or reaction product

Chemical Identity

CAS12238-31-2

PubChem CID136075951

DTXSIDDTXSID201014749

FormulaC18H11ClMnN2O6S

Mol. Weight473.7 g/mol

SMILESCC1=CC(=C(C=C1Cl)S(=O)(=O)[O-])N=NC2=C(C(=CC3=CC=CC=C32)C(=O)O)[O-].[Mn+2]

Data Sources

EPA CompTox (DSSTox) · DTXSID201014749Retrieved 2026-04-06
PubChem · compound 136075951Retrieved 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

2-[(3-Carboxy-2-hydroxynaphthalen-1-yl)diazenyl]-5-chloro-4-methylbenzenesulfonate;manganese (CAS 12238-31-2) https://chemicalindependence.com/chemical/12238-31-2/ EPA CompTox (DSSTox): DTXSID201014749. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID201014749 PubChem: 136075951. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/136075951 EPA Chemical Data Reporting: 12238-31-2. Reporting year: 2019. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 12238-31-2. Reporting year: 2019. https://www.epa.gov/chemical-data-reporting