C.I. Direct Yellow 34
CAS 6420-33-3
EPA and Census publish no US supply data for this chemical.
US productionNot reported
Top sourceNo public record
EPA lists this chemical for 2019 but publishes zero or no volume for both production and imports.
Why supply is unknownWhere It Comes From
EPA and Census publish no US supply data for this chemical.
EPA reports by year
- 2019
- US production Not published · Imports Not published
Domestic parents -- activity not disclosed (1)
EPA records name a US company for this chemical but do not disclose whether the company made it here or imported it.
Archroma U.S
Why It Matters
No EPA sector or FDA product records name a use for this chemical.
Chemical Identity
CAS6420-33-3
PubChem CID160836
DTXSIDDTXSID50881407
FormulaC37H28N6Na4O15S4
Mol. Weight1016.9 g/mol
SMILESCC1=CC(=C(C=C1N=NC2=CC3=C(C=CC=C3S(=O)(=O)[O-])C(=C2)S(=O)(=O)[O-])OC)NC(=O)NC4=C(C=C(C(=C4)C)N=NC5=CC6=C(C=CC=C6S(=O)(=O)[O-])C(=C5)S(=O)(=O)[O-])OC.[Na+].[Na+].[Na+].[Na+]
Data Sources
- EPA CompTox (DSSTox) · DTXSID50881407Retrieved 2026-04-06
- PubChem · compound 160836Retrieved 2026-04-06
- EPA Chemical Data ReportingReporting year: 2019 · Retrieved 2026-10-04
Brief citations
C.I. Direct Yellow 34 (CAS 6420-33-3) https://chemicalindependence.com/chemical/6420-33-3/ EPA CompTox (DSSTox): DTXSID50881407. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID50881407 PubChem: 160836. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/160836 EPA Chemical Data Reporting: 6420-33-3. Reporting year: 2019. https://www.epa.gov/chemical-data-reporting