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C.I. Solvent Red 26

CAS 4477-79-6

2-Naphthalenol, 1-[2-[2,5-dimethyl-4-[2-(2-methylphenyl)diazenyl]phenyl]diazenyl]-

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

Molecular structure of 4477-79-6
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

CAS4477-79-6
PubChem CIDNot recorded
DTXSIDDTXSID5050395
FormulaC25H22N4O
Mol. Weight394.478 g/mol
SMILESCC1=CC=CC=C1N=NC1=CC(C)=C(C=C1C)N=NC1=C(O)C=CC2=C1C=CC=C2

Data Sources

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Brief citations

C.I. Solvent Red 26 (CAS 4477-79-6) https://chemicalindependence.com/chemical/4477-79-6/ EPA TSCA Inventory: CAS 4477-79-6. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory