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5-Quinolinesulfonic acid, 8-hydroxy-7-[2-(6-sulfo-2-naphthalenyl)diazenyl]-, sodium salt (1:2)

CAS 56932-43-5

Molecular structure of 56932-43-5
2 Na⁺
US productionNot reported
Import value, 2024$111M
Top sourceIndia 28%

This chemical is listed as active in US commerce, but no company reported it to EPA’s survey for 2019 or 2023. Sites may have made or imported less than the threshold amount, or none.

Why supply is unknown

Production is reported production, not a complete census of factories. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 293349 · basket

These shares come from HS customs code 293349, which covers 94 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
IN 28%IndiaCN 27%ChinaSE 12%SwedenKR 10%South KoreaGB 4%United Kingdom

Why It Matters

No EPA sector or FDA product records name a use for this chemical.

Chemical Identity

CAS56932-43-5
PubChem CIDNot recorded
DTXSIDDTXSID30889401
FormulaC19H11N3Na2O7S2
Mol. Weight503.41 g/mol
SMILES[Na+].[Na+].OC1=C(C=C(C2=C1N=CC=C2)S([O-])(=O)=O)\N=N\C1=CC2=C(C=C1)C=C(C=C2)S([O-])(=O)=O

Data Sources

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Brief citations

5-Quinolinesulfonic acid, 8-hydroxy-7-[2-(6-sulfo-2-naphthalenyl)diazenyl]-, sodium salt (1:2) (CAS 56932-43-5) https://chemicalindependence.com/chemical/56932-43-5/ EPA TSCA Inventory: CAS 56932-43-5. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 293349 for CAS 56932-43-5. Reporting year: 2024. https://usatrade.census.gov/