Sodium gentisate

CAS 4955-90-2

Benzoic acid, 2,5-dihydroxy-, sodium salt (1:1)

Molecular structure of 4955-90-2
1 Na⁺
US productionNot reported
Import value, 2024$122M
Top sourceSouth Korea 39%

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 291829 · basket

These shares come from HS customs code 291829, which covers 85 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
KR 39%South KoreaCN 26%ChinaTW 11%TaiwanJP 9%JapanSG 5%Singapore

Why It Matters

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

Vendor Pricing

$1.16/gAaron Chemicals LLC
CountryHong Kong
Pack$579.00 / 500 g
Purity98%
Vendors14 available

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

Chemical Identity

CAS4955-90-2
PubChem CIDNot recorded
DTXSIDDTXSID0063656
FormulaC7H5NaO4
Mol. Weight176.103 g/mol
SMILES[Na+].OC1=CC(C([O-])=O)=C(O)C=C1

Data Sources

Brief citations

Sodium gentisate (CAS 4955-90-2) https://chemicalindependence.com/chemical/4955-90-2/ EPA TSCA Inventory: CAS 4955-90-2. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 291829 for CAS 4955-90-2. Reporting year: 2024. https://usatrade.census.gov/