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Dichlorophosphonoazo III

CAS 1914-99-4

2,7-Naphthalenedisulfonic acid, 3,6-bis[2-(4-chloro-2-phosphonophenyl)diazenyl]-4,5-dihydroxy-

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

Molecular structure of 1914-99-4
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

CAS1914-99-4
PubChem CIDNot recorded
DTXSIDDTXSID5062057
FormulaC22H16Cl2N4O14P2S2
Mol. Weight757.35 g/mol
SMILESOC1=C(N=NC2=C(C=C(Cl)C=C2)P(O)(O)=O)C(=CC2=CC(=C(N=NC3=CC=C(Cl)C=C3P(O)(O)=O)C(O)=C12)S(O)(=O)=O)S(O)(=O)=O

Data Sources

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Brief citations

Dichlorophosphonoazo III (CAS 1914-99-4) https://chemicalindependence.com/chemical/1914-99-4/ EPA TSCA Inventory: CAS 1914-99-4. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory