8-Hydroxyquinoline-5-sulfonic acid

CAS 84-88-8

5-Quinolinesulfonic acid, 8-hydroxy-

Molecular structure of 84-88-8
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.

Vendor Pricing

$0.42/gCombi-Blocks, Inc.
CountryUnited States
Pack$210.00 / 500 g
Purity97%
Vendors15 available

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

Chemical Identity

CAS84-88-8
PubChem CIDNot recorded
DTXSIDDTXSID7041542
FormulaC9H7NO4S
Mol. Weight225.22 g/mol
SMILESOC1=CC=C(C2=CC=CN=C12)S(O)(=O)=O

Data Sources

Brief citations

8-Hydroxyquinoline-5-sulfonic acid (CAS 84-88-8) https://chemicalindependence.com/chemical/84-88-8/ EPA TSCA Inventory: CAS 84-88-8. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 293349 for CAS 84-88-8. Reporting year: 2024. https://usatrade.census.gov/