Glutamic acid hydrochloride

Glutamic acid hydrochloride is a flavour enhancer and acidulant, the acid form of the compound behind savoury taste.

Where it is and isn’t permitted

Status of Glutamic acid hydrochloride 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 182.1047retrieved 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 from glutamic acid, produced by bacterial fermentation, as its hydrochloride salt.

  • Vegan
  • Vegetarian
InChIKey
RPAJSBKBKSSMLJ-DFWYDOINSA-N
PubChem
CID 2723891

Every name it appears under

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

CAS registry number

  • 138-15-8

As it appears in regulation

  • Glutamic acid hydrochloride

Other names

  • (2S)-2-aminopentanedioic acid, chloride
  • (2S)-2-aminopentanedioic acid;hydrochloride
  • (S)-(+)-Glutamic acid hydrochloride
  • (S)-1,3-dicarboxypropanaminium chloride
  • (S)-2-Aminopentanedioic acid hydrochloride
  • (S)-2-Aminopentanedioicacidhydrochloride
  • 2-Aminopentanedioic acid hydrochloride
  • Acidalin
  • Acidogen
  • Acidoride
  • Acidothyn
  • Acidulin
  • Aciglumin
  • Acigluminum
  • Aclor
  • alpha-Aminopentanedioic acid, hydrochloride, L-
  • Antalka
  • CAS-138-15-8
  • Clorhidrato de acido glutamico
  • Feracid
  • Flamithin
  • Flanithin
  • Gastuloric
  • Glusatin
  • Glutamic acid HCl
  • GLUTAMIC ACID HYDROCHLORIDE
  • GLUTAMIC ACID HYDROCHLORIDE (II)
  • GLUTAMIC ACID HYDROCHLORIDE (MART.)
  • glutamic acid hydrochloride salt
  • Glutamic acid hydrogen chloride
  • glutamic acid monohydrochloride
  • Glutamic acid, hydrochloride, L-
  • Glutamic acid, L-, hydrochloride
  • Glutamidin
  • Glutamidine
  • Glutan hcl
  • Glutan hydrochloride
  • Glutan-HCl
  • Glutasin
  • H-Glu-OH inverted exclamation mark currencyHCl
  • H-Glu-OH.HCl
  • Hydrionic
  • Hypochylin
  • Hypochylin (TN)
  • L-(+)-Glutamic acid HCl
  • L-(+)-Glutamic acid hydrochloride
  • L-Glutamic acid HCl
  • L-Glutamic acid hydrochloride
  • L-Glutamic Acid Hydrochloride (100 mg)
  • L-GLUTAMIC ACID HYDROCHLORIDE (USP-RS)
  • L-Glutamic acid hydrochloride, >=99% (HPLC)
  • L-Glutamic acid hydrochloride, United States Pharmacopeia (USP) Reference Standard
  • L-Glutamic acid monohydrochloride
  • L-Glutamic acid, hydrochloride (1:1)
  • L-Glutamic acid--hydrogen chloride (1/1)
  • Muriamic
  • Muripsin
  • Pepsdol
  • S(+)-1-Aminopropane-1,3-dicarboxylic acid hydrochloride

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/glutamic-acid-hydrochloride.json