oxyquinoline sulfate

Drug ingredient

CAS 134-31-6

This chemical is an active pharmaceutical ingredient used in FDA-regulated drugs.

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

Country of origin for US imports, from Census customs data (2024).

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

Spain
Portugal
Germany
Netherlands
Israel
Australia
Taiwan
Lithuania
South Africa
Hong Kong

3 FDA-registered drug labelers

CooperSurgical, Inc.

Eskay Iodine Private Limited

Professional Compounding Centers of America

Why It Matters

Sectors

Health

Downstream Uses

Appears in 1 drug and cosmetic product listings (FDA).

•Trimo SAN

FDA Shortage Status

Whether any manufacturer currently reports this drug as in shortage on the FDA Drug Shortages database. "Active Shortage" means at least one presentation has status "current."

No FDA shortage records

Vendor Pricing

$0.05/gAaron Chemicals LLC

CountryHong Kong

Pack$27.00 / 500 g

Purity97%

Vendors15 available

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

14 more vendors

Vendor	Country	$/g	Pack	Purity
Angene Chemical	China → Hong Kong	$0.06	500 g	98%
AstaTech, Inc	United States	$0.11	1 kg	95%
Ambeed, Inc.	United States	$0.11	1 kg	97%
AA BLOCKS	United States	$0.12	100 g	97%
A2B Chem LLC	United States	$0.12	100 g	97%
AK Scientific Specialized	United States	$0.18	500 g	95%
Angene International Limited	United States	$0.24	1 kg	98%
AK Scientific, Inc.	United States	$0.24	500 g	98%
Combi-Blocks, Inc.	United States	$0.25	1 kg	97%
Sigma-Aldrich (Rush Stock)	Germany	$0.52	500 g	98%
Sigma-Aldrich	Germany	$0.52	500 g	98%
Apollo Scientific UK	United Kingdom	$2.80	10 g	95%
TargetMol Chemicals	China → United States	$44.00	1 g	99.81%
Angene	China → Hong Kong	$4266.67	30 mg	98%

Chemical Identity

CAS134-31-6

PubChem CID517000

DTXSIDDTXSID6025436

FormulaC18H16N2O6S

Mol. Weight388.4 g/mol

SMILESC1=CC2=C(C(=C1)O)N=CC=C2.C1=CC2=C(C(=C1)O)N=CC=C2.OS(=O)(=O)O

Data Sources

PubChem · compound 517000Retrieved 2026-04-07
EPA TSCA InventoryRetrieved 2026-04-24
FDA National Drug Code directoryRetrieved 2026-04-07
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

oxyquinoline sulfate (CAS 134-31-6) https://chemicalindependence.com/chemical/134-31-6/ PubChem: 517000. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/517000 EPA TSCA Inventory: CAS 134-31-6. Retrieved 2026-04-24. https://www.epa.gov/tsca-inventory FDA National Drug Code directory: bulk match. Retrieved 2026-04-07. https://open.fda.gov/data/ndc/ US Census international trade: HS 293349 for CAS 134-31-6. Reporting year: 2024. https://usatrade.census.gov/