C.I. Reactive Blue 250
CAS 93951-21-4
Companies reported imports and no US production of this chemical to EPA for 2023.
US productionZero
Import volume29.5K lb
Import dependency100%
Top sourceNo public record
Production is reported production, not a complete census of factories. Production reporting year: 2023.
Where It Comes From
EPA reports by year
- 2023
- US production Zero · Imports 29.5K lb
- 2019
- US production Not published · Imports Not published
EPA-registered importers (1)
Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.
Dystar
Why It Matters
Sectors
Textiles
Downstream UsesNot recorded
FDA Shortage Status
Whether any manufacturer currently reports this drug as in shortage on the FDA Drug Shortages database. "Active Shortage" means at least one presentation has status "current."
No FDA shortage records
Industrial Uses
- •Dye in Textiles, apparel, and leather manufacturing (0%)Processing—incorporation into formulation, mixture, or reaction product
Chemical Identity
CAS93951-21-4
PubChem CID135666633
DTXSIDDTXSID30890431
FormulaC27H23N5Na4O20S6
Mol. Weight1021.9 g/mol
SMILESCOC1=C(C=C(C=C1)S(=O)(=O)CCOS(=O)(=O)[O-])N=NC2=C(C3=C(C(=C(C=C3C=C2S(=O)(=O)[O-])S(=O)(=O)[O-])N=NC4=CC=C(C=C4)S(=O)(=O)CCOS(=O)(=O)[O-])N)O.[Na+].[Na+].[Na+].[Na+]
Data Sources
- EPA CompTox (DSSTox) · DTXSID30890431Retrieved 2026-04-06
- PubChem · compound 135666633Retrieved 2026-04-06
- EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
- EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
Brief citations
C.I. Reactive Blue 250 (CAS 93951-21-4) https://chemicalindependence.com/chemical/93951-21-4/ EPA CompTox (DSSTox): DTXSID30890431. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID30890431 PubChem: 135666633. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/135666633 EPA Chemical Data Reporting: 93951-21-4. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 93951-21-4. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting