2-Naphthalenesulfonic acid, 7-amino-4-hydroxy-3-[[4-[(4-sulfophenyl)azo]phenyl]azo]-, compd. with 2,2',2''-nitrilotris[ethanol] (1:2)
CAS 64683-40-5
U.S. production volumes are classified as confidential business information.
At least one company claimed its 2023 production or import volume for this chemical as confidential, so EPA withholds it.
Why supply is unknownProduction is reported production, not a complete census of factories. US production volume is confidential. Production reporting year: 2023.
Where It Comes From
- 2023
- US production Confidential · Imports Confidential
- 2019
- US production Confidential · Imports Confidential
Why It Matters
Industrial Uses
- •Dye in Paper Manufacturing (100%)Processing—incorporation into article
Chemical Identity
Data Sources
- EPA CompTox (DSSTox) · DTXSID1029388Retrieved 2026-04-06
- PubChem · compound 162196Retrieved 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
2-Naphthalenesulfonic acid, 7-amino-4-hydroxy-3-[[4-[(4-sulfophenyl)azo]phenyl]azo]-, compd. with 2,2',2''-nitrilotris[ethanol] (1:2) (CAS 64683-40-5) https://chemicalindependence.com/chemical/64683-40-5/ EPA CompTox (DSSTox): DTXSID1029388. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID1029388 PubChem: 162196. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/162196 EPA Chemical Data Reporting: 64683-40-5. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 64683-40-5. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting