L-Aspartic acid, N,N'-[1,2-ethenediylbis[(3-sulfo-4,1-phenylene)imino[6-[(2,5-disulfophenyl)amino]-1,3,5-triazine-4,2-diyl]]]bis-, sodium salt (1:10)

CAS 533926-03-3

EPA’s 2023 records show zero U.S. production of this chemical.

Molecular structure of 533926-03-3 — 10 Na⁺

US productionZero

Import volumeCBI

Confidential Business Information. The EPA withholds this volume because publishing it could reveal the reporting company's trade secrets.

Top sourceNo public record

At least one company claimed its 2023 production or import volume for this chemical as confidential, so EPA withholds it.

Why supply is unknown

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 Confidential

EPA-registered importers (2)

Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.

Archroma Management Gmbh · CH Switzerland

Archroma U.S

Why It Matters

Sectors

Paper & Printing

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

•Brightener in Paper Manufacturing (100%)Processing—incorporation into article

Chemical Identity

CAS533926-03-3

PubChem CIDNot recorded

DTXSIDDTXSID701343303

FormulaC40H26N12Na10O26S6

Mol. Weight1512.96 g/mol

SMILES[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[O-]C(=O)C[C@H](NC1=NC(NC2=C(C=CC(=C2)S([O-])(=O)=O)S([O-])(=O)=O)=NC(NC2=CC(=C(C=CC3=C(C=C(NC4=NC(N[C@@H](CC([O-])=O)C([O-])=O)=NC(NC5=C(C=CC(=C5)S([O-])(=O)=O)S([O-])(=O)=O)=N4)C=C3)S([O-])(=O)=O)C=C2)S([O-])(=O)=O)=N1)C([O-])=O

Data Sources

EPA TSCA InventoryRetrieved 2026-04-29
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04

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Brief citations

L-Aspartic acid, N,N'-[1,2-ethenediylbis[(3-sulfo-4,1-phenylene)imino[6-[(2,5-disulfophenyl)amino]-1,3,5-triazine-4,2-diyl]]]bis-, sodium salt (1:10) (CAS 533926-03-3) https://chemicalindependence.com/chemical/533926-03-3/ EPA TSCA Inventory: CAS 533926-03-3. Retrieved 2026-04-29. https://www.epa.gov/tsca-inventory EPA Chemical Data Reporting: 533926-03-3. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 533926-03-3. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting