Succinic acid

E number E363CAS 110-15-6

Succinic acid is an acidulant and flavouring with a distinctive savoury sourness. It occurs naturally in wine, sauerkraut and shellfish, where it contributes to the taste.

Where it is and isn’t permitted

Status of Succinic acid by jurisdiction. Every jurisdiction this site covers is listed, including those where the substance does not appear.
JurisdictionStatusScope and limitsCitation
United StatesFood and Drug AdministrationPermitted21 CFR 184.1091retrieved 2026-09-07
Codex AlimentariusCodex Alimentarius Commission / JECFANot listedDoes not appear on this jurisdiction’s permitted list. That is not the same as being prohibited.

What it is made from

Produced by fermentation, increasingly from renewable feedstocks, or synthetically from petroleum intermediates.

  • Vegan
  • Vegetarian
CAS registry number
110-15-6
InChIKey
KDYFGRWQOYBRFD-UHFFFAOYSA-N
PubChem
CID 1110

Every name it appears under

63 recorded names. A label may use any of them.

E number

  • E363

CAS registry number

  • 110-15-6
  • 26776-24-9

As it appears in regulation

  • Succinic acid

Other names

  • 1,2 Ethanedicarboxylic Acid
  • 1,2-Ethanedicarboxylate
  • 1,2-Ethanedicarboxylic acid
  • 1,4 Butanedioic Acid
  • 1,4-Butanedioate
  • 1,4-Butanedioic acid
  • 1cze
  • AB6MNQ6J6L
  • acide butanedioique
  • acide succinique
  • Acidum succinicum
  • Amber acid
  • Asuccin
  • Bernsteinsaeure
  • Bernsteinsaure
  • BRN 1754069
  • Butandisaeure
  • Butane diacid
  • butanedioate;hydron
  • butanedioic acid
  • Butanedioic acid (9CI)
  • Butanedioic acid diammonium salt
  • Butanedionic acid
  • CAS-110-15-6
  • Dihydrofumarate
  • Dihydrofumaric acid
  • E 363
  • Ethanedicarboxylic acid
  • Ethylene dicarboxylic acid
  • Ethylene succinic acid
  • ethylenesuccinic acid
  • FEMA NO. 4719
  • HOOC-CH2-CH2-COOH
  • HSDB 791
  • Katasuccin
  • Kyselina jantarova
  • Sal succini
  • SIN
  • sodium succinate (anhydrous)
  • succ
  • succinate, 9
  • Succinate, Potassium
  • succinct acid
  • Succinellite
  • Succinic acid
  • Succinic acid (8CI)
  • Succinic acid CRS
  • Succinic acid, 6
  • Succinic acid, 99%
  • Succinic acid, FCC
  • Succinic acid, natural
  • Succinic Acid; Butanedioic acid
  • succinic-acid
  • Succinicate
  • Succinicum acidum
  • Succunic Acide
  • WLN: QV2VQ
  • Wormwood acid

Systematic names

  • Butanedioic acid

Hazard reference values

No reference value for this substance in the sources we hold.

Evidence and how bodies read it

Studies, and the differing conclusions regulators drew from them, are curated by hand rather than machine-read, and none has been written for this substance yet.

Sources for this page

  • ecfr retrieved 2026-09-07

Full licence terms and publisher details on Sources. How this page is built and updated: Method.

Machine-readable:/api/v1/additives/succinic-acid.json