C.I. Acid Orange 74
CAS 10127-27-2
Chromate(1-), [3-[2-[4,5-dihydro-3-methyl-5-(oxo-κO)-1-phenyl-1H-pyrazol-4-yl]diazenyl-κN1]-2-(hydroxy-κO)-5-nitrobenzenesulfonato(3-)]hydroxy-, sodium (1:1), (T-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
CAS10127-27-2
PubChem CIDNot recorded
DTXSIDDTXSID10892514
FormulaC16H11CrN5NaO8S
Mol. Weight508.34 g/mol
SMILES[OH-].[Na+].[Cr+3].CC1=NN(C(=O)[C-]1N=NC1=CC(=CC(=C1[O-])S([O-])(=O)=O)[N+]([O-])=O)C1=CC=CC=C1
Data Sources
- EPA TSCA InventoryRetrieved 2026-10-04
Brief citations
C.I. Acid Orange 74 (CAS 10127-27-2) https://chemicalindependence.com/chemical/10127-27-2/ EPA TSCA Inventory: CAS 10127-27-2. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory