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C.I. Direct Black 80

CAS 8003-69-8

2-Naphthalenesulfonic acid, 6-[2-(7-amino-1-hydroxy-3-sulfo-2-naphthalenyl)diazenyl]-3-[2-[4-[2-[4-amino-6(or 7)-sulfo-1-naphthalenyl]diazenyl]phenyl]diazenyl]-4-hydroxy-, sodium salt (1:3)

U.S. production volumes are classified as confidential business information.

Molecular structure of 8003-69-8
3 Na⁺
US productionCBI
Import value, 2024$18M
Top sourceIndia 41%

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. US production volume is confidential. Production reporting year: 2023. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 320414 · basket

EPA reports by year
2023
US production Confidential · Imports Confidential

These shares come from HS customs code 320414, which covers 36 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
IN 41%IndiaMX 33%MexicoJP 8%JapanDE 6%GermanyTW 3%Taiwan

Why It Matters

Sectors
Textiles
Downstream UsesNot recorded
FDA Shortage Status
No FDA shortage records

Industrial Uses

  • •Dye in Synthetic Dye and Pigment Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product

Chemical Identity

CAS8003-69-8
PubChem CIDNot recorded
DTXSIDDTXSID7025188
FormulaC36H23N8Na3O11S3
Mol. Weight908.77 g/mol
SMILES[Na+].[Na+].[Na+].NC1=CC2=C(O)C(N=NC3=CC=C4C=C(C(N=NC5=CC=C(C=C5)N=NC5=C6C=CC=CC6=C(N)C=C5)=C(O)C4=C3)S([O-])(=O)=O)=C(C=C2C=C1)S([O-])(=O)=O.[O-]S(*)(=O)=O |c:3,13,20,22,27,29,31,37,43,49,51,54,t:1,9,11,18,34,39,lp:3:1,8:2,10:1,11:1,19:1,20:1,27:1,28:1,37:1,41:2,45:3,46:2,47:2,54:3,55:2,56:2,57:3,60:2,61:2,m:59:33.32|

Data Sources

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Brief citations

C.I. Direct Black 80 (CAS 8003-69-8) https://chemicalindependence.com/chemical/8003-69-8/ EPA TSCA Inventory: CAS 8003-69-8. Retrieved 2026-04-29. https://www.epa.gov/tsca-inventory EPA Chemical Data Reporting: 8003-69-8. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 8003-69-8. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 320414 for CAS 8003-69-8. Reporting year: 2024. https://usatrade.census.gov/