Flag of the United StatesAmerican Chemical Independence

2,7-Naphthalenedisulfonic acid, 4-amino-3-[2-(2,5-disulfophenyl)diazenyl]-5-hydroxy-6-[2-(3-phosphonophenyl)diazenyl]-, sodium salt (1:4)

CAS 68110-25-8

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

Molecular structure of 68110-25-8
4 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

CAS68110-25-8
PubChem CIDNot recorded
DTXSIDDTXSID80889931
FormulaC22H14N5Na4O16PS4
Mol. Weight855.55 g/mol
SMILES[Na+].[Na+].[Na+].[Na+].NC1=C(N=NC2=C(C=CC(=C2)S(O)(=O)=O)S(O)(=O)=O)C(=CC2=CC(=C(N=NC3=CC(=CC=C3)P([O-])([O-])=O)C(O)=C12)S([O-])(=O)=O)S([O-])(=O)=O

Data Sources

← Back to Dashboard

Brief citations

2,7-Naphthalenedisulfonic acid, 4-amino-3-[2-(2,5-disulfophenyl)diazenyl]-5-hydroxy-6-[2-(3-phosphonophenyl)diazenyl]-, sodium salt (1:4) (CAS 68110-25-8) https://chemicalindependence.com/chemical/68110-25-8/ EPA TSCA Inventory: CAS 68110-25-8. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory