2-Naphthalenecarboxamide, N,N'-(2,5-dichloro-1,4-phenylene)bis(4-((2,5-dichlorophenyl)azo)-3-hydroxy-

CAS 40618-31-3

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 Confidential

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.

Basf

EPA-registered importers (2)

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

Heubach Holding S R L · LU Luxembourg

Heubach Holding Usa

Why It Matters

Sectors

Metals & MiningPlastics & RubberPaints & 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 6 sectors as 1 functional role.

•Pigment in Printing Ink Manufacturing (35%)Processing—incorporation into formulation, mixture, or reaction product
•Pigment in Machinery Manufacturing (10%)Processing—incorporation into article
•Pigment in Plastics Material and Resin Manufacturing (55%)Processing—incorporation into formulation, mixture, or reaction product
•Pigment in Paint and Coating Manufacturing (10%)Processing—incorporation into formulation, mixture, or reaction product
•Pigment in Not Known or Reasonably Ascertainable (35%)Processing—incorporation into article
•Pigment in Plastics Product Manufacturing (55%)Processing—incorporation into article

Chemical Identity

CAS40618-31-3

PubChem CID162420

DTXSIDDTXSID4068242

FormulaC40H22Cl6N6O4

Mol. Weight863.3 g/mol

SMILESC1=CC=C2C(=C1)C=C(C(=C2N=NC3=C(C=CC(=C3)Cl)Cl)O)C(=O)NC4=CC(=C(C=C4Cl)NC(=O)C5=CC6=CC=CC=C6C(=C5O)N=NC7=C(C=CC(=C7)Cl)Cl)Cl

Data Sources

EPA CompTox (DSSTox) · DTXSID4068242Retrieved 2026-04-06
PubChem · compound 162420Retrieved 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

2-Naphthalenecarboxamide, N,N'-(2,5-dichloro-1,4-phenylene)bis(4-((2,5-dichlorophenyl)azo)-3-hydroxy- (CAS 40618-31-3) https://chemicalindependence.com/chemical/40618-31-3/ EPA CompTox (DSSTox): DTXSID4068242. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID4068242 PubChem: 162420. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/162420 EPA Chemical Data Reporting: 40618-31-3. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 40618-31-3. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting