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1,5-Naphthalenedisulfonic acid, 3-[2-(4-amino-5-methoxy-2-methylphenyl)diazenyl]-, sodium salt (1:2)

CAS 67875-30-3

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

Molecular structure of 67875-30-3
2 Na⁺
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

CAS67875-30-3
PubChem CIDNot recorded
DTXSIDDTXSID3070759
FormulaC18H15N3Na2O7S2
Mol. Weight495.43 g/mol
SMILES[Na+].[Na+].COC1=CC(N=NC2=CC(=C3C=CC=C(C3=C2)S([O-])(=O)=O)S([O-])(=O)=O)=C(C)C=C1N

Data Sources

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Brief citations

1,5-Naphthalenedisulfonic acid, 3-[2-(4-amino-5-methoxy-2-methylphenyl)diazenyl]-, sodium salt (1:2) (CAS 67875-30-3) https://chemicalindependence.com/chemical/67875-30-3/ EPA TSCA Inventory: CAS 67875-30-3. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory