Ferrous citrate

CAS 23383-11-1

Ferrous citrate is an iron fortificant used in supplements and fortified foods.

Where it is and isn’t permitted

Status of Ferrous citrate 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 184.1307cretrieved 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

Made by reacting an iron salt with citric acid.

  • Vegan
  • Vegetarian
CAS registry number
23383-11-1
InChIKey
APVZWAOKZPNDNR-UHFFFAOYSA-L
PubChem
CID 11064683

Every name it appears under

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

CAS registry number

  • 23383-11-1

As it appears in regulation

  • Ferrous citrate

Other names

  • 1,2,3-Propanetricarboxylic acid, 2-hydroxy-, iron(2+) salt
  • 2-(carboxymethyl)-2-hydroxybutanedioate;iron(2+)
  • 33KM3X4QQW
  • Citric acid, iron(2+) salt
  • fe(ii) citrate
  • FERROUS CITRATE
  • ferrous citrate Fe 58
  • Iron(2+) citrate
  • Iron(II) citrate
  • Monoferrous acid citrate

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/ferrous-citrate.json