1,3-Naphthalenedisulfonic acid, 7-hydroxy-8-[2-[4-[1-[4-[2-(4-hydroxyphenyl)diazenyl]phenyl]cyclohexyl]phenyl]diazenyl]-, potassium sodium salt (1:?:?)
CAS 72828-67-2
EPA and Census publish no US supply data for this chemical.
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 unknownWhere 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
CAS72828-67-2
PubChem CIDNot recorded
DTXSIDDTXSID90904866
FormulaC34H28KN4NaO8S2
Mol. Weight746.83 g/mol
SMILES[Na+].[K+].OC1=CC=C(C=C1)N=NC1=CC=C(C=C1)C1(CCCCC1)C1=CC=C(C=C1)N=NC1=C(O)C=CC2=CC(=CC(=C12)S([O-])(=O)=O)S([O-])(=O)=O
Data Sources
- EPA TSCA InventoryRetrieved 2026-10-04
Brief citations
1,3-Naphthalenedisulfonic acid, 7-hydroxy-8-[2-[4-[1-[4-[2-(4-hydroxyphenyl)diazenyl]phenyl]cyclohexyl]phenyl]diazenyl]-, potassium sodium salt (1:?:?) (CAS 72828-67-2) https://chemicalindependence.com/chemical/72828-67-2/ EPA TSCA Inventory: CAS 72828-67-2. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory