Sodium 2-anthraquinonesulfonate

CAS 131-08-8

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

Molecular structure of 131-08-8
1 Na⁺
US productionCBI
Import value, 2024$175M
Import volumeZero
Top sourceIndia 48%

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 291479 · basket

EPA reports by year
2023
US production Confidential · Imports Zero
2019
US production Confidential · Imports Confidential

These shares come from HS customs code 291479, which covers 95 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
IN 48%IndiaCN 20%ChinaMX 19%MexicoDE 10%GermanyFI 2%Finland
Domestic parents -- activity not disclosed (1)
Basf

Why It Matters

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

Industrial Uses

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

Vendor Pricing

$0.23/gA2B Chem LLC
CountryUnited States
Pack$116.00 / 500 g
Purity97%
Vendors17 available

Prices reflect listed pack sizes. Small research packs run far above bulk rates.

Chemical Identity

CAS131-08-8
PubChem CID23661981
DTXSIDDTXSID4044535
FormulaC14H7NaO5S
Mol. Weight310.26 g/mol
SMILESC1=CC=C2C(=C1)C(=O)C3=C(C2=O)C=C(C=C3)S(=O)(=O)[O-].[Na+]

Data Sources

Brief citations

Sodium 2-anthraquinonesulfonate (CAS 131-08-8) https://chemicalindependence.com/chemical/131-08-8/ EPA CompTox (DSSTox): DTXSID4044535. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID4044535 PubChem: 23661981. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/23661981 EPA Chemical Data Reporting: 131-08-8. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 131-08-8. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 291479 for CAS 131-08-8. Reporting year: 2024. https://usatrade.census.gov/