C.I. Acid Yellow 220
CAS 70851-34-2
Cobaltate(4-), bis[2-[[[3-[2-[1-[[(2-chlorophenyl)amino]carbonyl]-2-(oxo-κO)propyl]diazenyl-κN1]-4-(hydroxy-κO)phenyl]sulfonyl]amino]benzoato(3-)]-, sodium (1:4)
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
CAS70851-34-2
PubChem CIDNot recorded
DTXSIDDTXSID30904446
FormulaC46H32Cl2CoN8Na4O14S2
Mol. Weight1206.72 g/mol
SMILES[Na+].[Na+].[Na+].[Na+].[Co++].CC(=O)[C-](N=NC1=C([O-])C=CC(=C1)S(=O)(=O)NC1=CC=CC=C1C([O-])=O)C(=O)NC1=CC=CC=C1Cl.CC(=O)[C-](N=NC1=C([O-])C=CC(=C1)S(=O)(=O)NC1=CC=CC=C1C([O-])=O)C(=O)NC1=CC=CC=C1Cl
Data Sources
- EPA TSCA InventoryRetrieved 2026-10-04
Brief citations
C.I. Acid Yellow 220 (CAS 70851-34-2) https://chemicalindependence.com/chemical/70851-34-2/ EPA TSCA Inventory: CAS 70851-34-2. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory