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2,7-Naphthalenedisulfonic acid, 4-hydroxy-

CAS 578-85-8

Molecular structure of 578-85-8
US productionNot reported
Import value, 2024$11M
Top sourceIndia 78%

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 290899 · basket

These shares come from HS customs code 290899, which covers 60 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
IN 78%IndiaCN 19%ChinaJP 1%JapanAE 1%United Arab Emirates

Why It Matters

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

Chemical Identity

CAS578-85-8
PubChem CIDNot recorded
DTXSIDDTXSID3060370
FormulaC10H8O7S2
Mol. Weight304.29 g/mol
SMILESOC1=C2C=CC(=CC2=CC(=C1)S(O)(=O)=O)S(O)(=O)=O

Data Sources

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Brief citations

2,7-Naphthalenedisulfonic acid, 4-hydroxy- (CAS 578-85-8) https://chemicalindependence.com/chemical/578-85-8/ EPA TSCA Inventory: CAS 578-85-8. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 290899 for CAS 578-85-8. Reporting year: 2024. https://usatrade.census.gov/