1,3-Naphthalenedisulfonic acid, 7-amino-, monopotassium salt

CAS 842-15-9

EPA’s 2023 records show zero U.S. production of this chemical.

US productionZero

Import volumeCBI

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. Production reporting year: 2023.

Where It Comes From

EPA reports by year

2023: US production Zero · 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.

Archroma U.S

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

•Intermediate in Synthetic Dye and Pigment Manufacturing (100%)Processing as a reactant

Vendor Pricing

$0.35/gA2B Chem LLC

CountryUnited States

Pack$174.00 / 500 g

Purity98%

Vendors6 available

Prices reflect listed pack sizes. Small research packs run far above bulk rates.

5 more vendors

Vendor	Country	$/g	Pack	Purity
AA BLOCKS (2 weeks)	United States	$0.37	500 g	—
Aaron Chemicals LLC	Hong Kong	$0.43	500 g	—
Angene Chemical	China → Hong Kong	$0.46	500 g	—
Angene International Limited	United States	$1.02	500 g	98%
Angene	China → Hong Kong	$4266.67	30 mg	—

Chemical Identity

CAS842-15-9

PubChem CID23677982

DTXSIDDTXSID4061204

FormulaC10H8KNO6S2

Mol. Weight341.4 g/mol

SMILESC1=CC(=CC2=C(C=C(C=C21)S(=O)(=O)O)S(=O)(=O)[O-])N.[K+]

Data Sources

EPA CompTox (DSSTox) · DTXSID4061204Retrieved 2026-04-06
PubChem · compound 23677982Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
EPA Chemical Data ReportingReporting year: 2019 · Retrieved 2026-10-04

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Brief citations

1,3-Naphthalenedisulfonic acid, 7-amino-, monopotassium salt (CAS 842-15-9) https://chemicalindependence.com/chemical/842-15-9/ EPA CompTox (DSSTox): DTXSID4061204. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID4061204 PubChem: 23677982. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/23677982 EPA Chemical Data Reporting: 842-15-9. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 842-15-9. Reporting year: 2019. https://www.epa.gov/chemical-data-reporting