Flag of the United StatesAmerican Chemical Independence

Sodium 4-hydroxycarbostyril

CAS 4510-76-3

2(1H)-Quinolinone, 4-hydroxy-, sodium salt (1:1)

Molecular structure of 4510-76-3
1 Na⁺
US productionNot reported
Import value, 2024$907M
Top sourceIreland 47%

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 293379 · basket

These shares come from HS customs code 293379, which covers 105 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
IE 47%IrelandBE 19%BelgiumSG 11%SingaporeIT 4%ItalyCH 4%Switzerland

Why It Matters

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

Chemical Identity

CAS4510-76-3
PubChem CIDNot recorded
DTXSIDDTXSID7063502
FormulaC9H6NNaO2
Mol. Weight183.142 g/mol
SMILES[Na+].[O-]C1=CC(=O)NC2=CC=CC=C12

Data Sources

← Back to Dashboard

Brief citations

Sodium 4-hydroxycarbostyril (CAS 4510-76-3) https://chemicalindependence.com/chemical/4510-76-3/ EPA TSCA Inventory: CAS 4510-76-3. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 293379 for CAS 4510-76-3. Reporting year: 2024. https://usatrade.census.gov/