2,7-Naphthalenedisulfonic acid, 3,3'-[1,2-ethenediylbis[(3-sulfo-4,1-phenylene)-2,1-diazenediyl]]bis[5-amino-4-hydroxy-, compd. with 2,2',2''-nitrilotris[ethanol] (1:6)

CAS 75701-36-9

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 250.0K lb · Imports 4.8K lb

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.

Kemira Water Solutions

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.

Lanxess

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 3 sectors as 1 functional role.

•Dye in Printing Ink Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
•Dye in Paper Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
•Dye in Synthetic Dye and Pigment Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product

Chemical Identity

CAS75701-36-9

PubChem CID138395817

DTXSIDDTXSID50888496

FormulaC70H116N12O38S6

Mol. Weight1926.1 g/mol

SMILESC1=CC(=C(C=C1N=NC2=C(C3=C(C=C(C=C3C=C2S(=O)(=O)O)S(=O)(=O)O)N)O)S(=O)(=O)O)C=CC4=C(C=C(C=C4)N=NC5=C(C6=C(C=C(C=C6C=C5S(=O)(=O)O)S(=O)(=O)O)N)O)S(=O)(=O)O.C(CO)N(CCO)CCO.C(CO)N(CCO)CCO.C(CO)N(CCO)CCO.C(CO)N(CCO)CCO.C(CO)N(CCO)CCO.C(CO)N(CCO)CCO

Data Sources

EPA CompTox (DSSTox) · DTXSID50888496Retrieved 2026-04-06
PubChem · compound 138395817Retrieved 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

2,7-Naphthalenedisulfonic acid, 3,3'-[1,2-ethenediylbis[(3-sulfo-4,1-phenylene)-2,1-diazenediyl]]bis[5-amino-4-hydroxy-, compd. with 2,2',2''-nitrilotris[ethanol] (1:6) (CAS 75701-36-9) https://chemicalindependence.com/chemical/75701-36-9/ EPA CompTox (DSSTox): DTXSID50888496. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID50888496 PubChem: 138395817. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/138395817 EPA Chemical Data Reporting: 75701-36-9. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 75701-36-9. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting