Benzenesulfonic acid, 4-[4,5-dihydro-4-[3-[5-hydroxy-3-methyl-1-(4-sulfophenyl)-1H-pyrazol-4-yl]-2-propen-1-ylidene]-3-methyl-5-oxo-1H-pyrazol-1-yl]-
CAS 24704-54-9
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
CAS24704-54-9
PubChem CIDNot recorded
DTXSIDDTXSID4074358
FormulaC23H20N4O8S2
Mol. Weight544.55 g/mol
SMILESCC1=NN(C(=O)C1=CC=CC1=C(O)N(N=C1C)C1=CC=C(C=C1)S(O)(=O)=O)C1=CC=C(C=C1)S(O)(=O)=O
Data Sources
- EPA TSCA InventoryRetrieved 2026-10-04
Brief citations
Benzenesulfonic acid, 4-[4,5-dihydro-4-[3-[5-hydroxy-3-methyl-1-(4-sulfophenyl)-1H-pyrazol-4-yl]-2-propen-1-ylidene]-3-methyl-5-oxo-1H-pyrazol-1-yl]- (CAS 24704-54-9) https://chemicalindependence.com/chemical/24704-54-9/ EPA TSCA Inventory: CAS 24704-54-9. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory