1H-Pyrazolium, 1,5-dimethyl-3-[2-(2-methyl-1H-indol-3-yl)diazenyl]-2-phenyl-, methyl sulfate (1:1)
CAS 29508-48-3
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
CAS29508-48-3
PubChem CIDNot recorded
DTXSIDDTXSID30904365
FormulaC21H25N5O4S
Mol. Weight443.52 g/mol
SMILESCOS([O-])(=O)=O.CC1C=C(\N=N\C2=C(C)NC3=C2C=CC=C3)N([NH+]1C)C1=CC=CC=C1
Data Sources
- EPA TSCA InventoryRetrieved 2026-10-04
Brief citations
1H-Pyrazolium, 1,5-dimethyl-3-[2-(2-methyl-1H-indol-3-yl)diazenyl]-2-phenyl-, methyl sulfate (1:1) (CAS 29508-48-3) https://chemicalindependence.com/chemical/29508-48-3/ EPA TSCA Inventory: CAS 29508-48-3. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory