Flag of the United StatesAmerican Chemical Independence

C.I. Disperse Blue 148

CAS 52239-04-0

β-Alanine, N-ethyl-N-[4-[2-(5-nitro-2,1-benzisothiazol-3-yl)diazenyl]phenyl]-, methyl ester

EPA and Census publish no US supply data for this chemical.

Molecular structure of 52239-04-0
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 unknown

Where 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

CAS52239-04-0
PubChem CIDNot recorded
DTXSIDDTXSID6068725
FormulaC19H19N5O4S
Mol. Weight413.45 g/mol
SMILESCCN(CCC(=O)OC)C1=CC=C(C=C1)N=NC1=C2C=C(C=CC2=NS1)[N+]([O-])=O

Data Sources

← Back to Dashboard

Brief citations

C.I. Disperse Blue 148 (CAS 52239-04-0) https://chemicalindependence.com/chemical/52239-04-0/ EPA TSCA Inventory: CAS 52239-04-0. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory