Cuprate(4-), [μ-[7-[2-[3,3'-di(hydroxy-κO)-4'-[2-[1-(hydroxy-κO)-6-(phenylamino)-3-sulfo-2-naphthalenyl]diazenyl-κN1][1,1'-biphenyl]-4-yl]diazenyl-κN1]-8-hydroxy-1,3,6-naphthalenetrisulfonato(8-)]]di-, sodium (1:4)

CAS 72927-72-1

Companies reported imports and no US production of this chemical to EPA for 2023.

Molecular structure of 72927-72-1 — 4 Na⁺

US productionZero

Import volume21.8K lb

Import dependency100%

Top sourceNo public record

Production is reported production, not a complete census of factories. Production reporting year: 2023.

Where It Comes From

EPA reports by year

2023: US production Zero · Imports 21.8K lb

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.

Aakash Chemicals

Why It Matters

Sectors

TextilesPaper & 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 2 sectors as 1 functional role.

•Dye in Textiles, apparel, and leather manufacturingProcessing—incorporation into article
•Dye in Paper Manufacturing (0%)Processing—incorporation into article

Chemical Identity

CAS72927-72-1

PubChem CIDNot recorded

DTXSIDDTXSID60904873

FormulaC38H19Cu2N5Na4O16S4

Mol. Weight1148.88 g/mol

SMILES[Na+].[Na+].[Na+].[Na+].O=S1(=O)O[Cu--]23OC4=C5C(C=C(C=C15)S(=O)(=O)O2)=CC(=C4\N=N\C1=CC=C2C=C1O[Cu--]14OC5=C6C=CC(NC7=CC=CC=C7)=CC6=CC(=C5\N=N\C5=CC=C2C=C5O1)S(=O)(=O)O4)S(=O)(=O)O3

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

Cuprate(4-), [μ-[7-[2-[3,3'-di(hydroxy-κO)-4'-[2-[1-(hydroxy-κO)-6-(phenylamino)-3-sulfo-2-naphthalenyl]diazenyl-κN1][1,1'-biphenyl]-4-yl]diazenyl-κN1]-8-hydroxy-1,3,6-naphthalenetrisulfonato(8-)]]di-, sodium (1:4) (CAS 72927-72-1) https://chemicalindependence.com/chemical/72927-72-1/ EPA TSCA Inventory: CAS 72927-72-1. Retrieved 2026-04-29. https://www.epa.gov/tsca-inventory EPA Chemical Data Reporting: 72927-72-1. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 72927-72-1. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting