Benzenesulfonic acid, 2,4-diamino-3-[2-[4-[[2-(sulfooxy)ethyl]sulfonyl]phenyl]diazenyl]-5-[2-[2-sulfo-4-[[2-(sulfooxy)ethyl]sulfonyl]phenyl]diazenyl]-, potassium sodium salt (1:x:x)

CAS 187026-95-5

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

Molecular structure of 187026-95-5 — 2 K⁺ · 2 Na⁺

US productionZero

Import volume88.4K 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 88.4K lb
2019: US production Zero · Imports 81.0K 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.

Dystar

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

•Dye in Textiles, apparel, and leather manufacturing (0%)Processing—incorporation into formulation, mixture, or reaction product

Chemical Identity

CAS187026-95-5

PubChem CID165362604

DTXSIDDTXSID901013847

FormulaC22H20K2N6Na2O18S6

Mol. Weight973 g/mol

SMILESC1=CC(=CC=C1N=NC2=C(C(=CC(=C2N)S(=O)(=O)[O-])N=NC3=C(C=C(C=C3)S(=O)(=O)CCOS(=O)(=O)[O-])S(=O)(=O)[O-])N)S(=O)(=O)CCOS(=O)(=O)[O-].[Na+].[Na+].[K+].[K+]

Data Sources

EPA CompTox (DSSTox) · DTXSID901013847Retrieved 2026-04-06
PubChem · compound 165362604Retrieved 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

Benzenesulfonic acid, 2,4-diamino-3-[2-[4-[[2-(sulfooxy)ethyl]sulfonyl]phenyl]diazenyl]-5-[2-[2-sulfo-4-[[2-(sulfooxy)ethyl]sulfonyl]phenyl]diazenyl]-, potassium sodium salt (1:x:x) (CAS 187026-95-5) https://chemicalindependence.com/chemical/187026-95-5/ EPA CompTox (DSSTox): DTXSID901013847. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID901013847 PubChem: 165362604. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/165362604 EPA Chemical Data Reporting: 187026-95-5. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 187026-95-5. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting