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2,7-Naphthalenedisulfonic acid, 3-hydroxy-4-[2-(2-hydroxy-4-sulfo-1-naphthalenyl)diazenyl]-

CAS 29120-26-1

EPA and Census publish no US supply data for this chemical.

Molecular structure of 29120-26-1
US productionNot reported
Top sourceNo public record

This chemical is listed as active in US commerce, but no company reported it to EPA’s survey for 2019 or 2023. Sites may have made or imported less than the threshold amount, or none.

Why supply is unknown

Where It Comes From

EPA and Census publish no US supply data for this chemical.

Why It Matters

No EPA sector or FDA product records name a use for this chemical.

Chemical Identity

CAS29120-26-1
PubChem CIDNot recorded
DTXSIDDTXSID60865470
FormulaC20H14N2O11S3
Mol. Weight554.52 g/mol
SMILESOC1=CC(=C2C=CC=CC2=C1N=NC1=C(O)C(=CC2=CC(=CC=C12)S(O)(=O)=O)S(O)(=O)=O)S(O)(=O)=O

Data Sources

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Brief citations

2,7-Naphthalenedisulfonic acid, 3-hydroxy-4-[2-(2-hydroxy-4-sulfo-1-naphthalenyl)diazenyl]- (CAS 29120-26-1) https://chemicalindependence.com/chemical/29120-26-1/ EPA TSCA Inventory: CAS 29120-26-1. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory