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GREENVEIL

  • food
  • industrial

L-Glutamic acid ammonium salt

CAS 7558-63-6 · 40/100 · High conf.

Also registered as 2 other CAS numbers

25677-11-6 · 17140-86-2

L-Glutamic acid ammonium salt chemical structure

Concern score

40/100Moderate concern based on regulatory listings.
High confidence

L-Glutamic acid ammonium salt in plain language

What it is

Also known as Monoammonium l-glutamate · Ammonium glutamate · Ammonium (2S)-2-amino-4-carboxybutanoate · azanium (2S)-2-amino-5-hydroxy-5-oxopentanoate · Ammonium (S)-2-amino-4-carboxybutanoate · Ammoniumglutaminat

Show all 17 names

E 624 · Glutamic acid, monoammonium salt, L- · Ins NO.624 · INS-624 · L-Glutamic acid ammonium · ammonium salt L-Glutamic acid · Monoammonium glutamate · Monoammonium l-glutamate monohydrate · T203472 · ammonium l-glutamate · azanium;(2S)-2-amino-5-hydroxy-5-oxopentanoate

What it does

Used in food as a flavour enhancer, salt substitute.

  • Flavour enhancer, salt substitute
  • Thickener
  • Flavouring
Is it a concern?
Moderate concern: no hazard classifications on record.

Why it's flagged

EPA CPDat observed this chemical in 0 composition records across product categories including unclassified products.

The score describes this ingredient's chemical identity — its hazard profile from published classifications and regulatory status — not the safety of any product it appears in.

Regulation

No restrictions found. L-Glutamic acid ammonium salt appears in these published regulatory listings.

Recorded in these product areas

  • Found in consumer products
  • Industrial
  • EUEFSAEFSA opinion2 entries
    • Re-evaluation of glutamic acid (E 620), sodium glutamate (E 621), potassium glutamate (E 622), calcium glutamate (E 623), ammonium glutamate (E 624) and magnesium glutamate (E 625) as food additives (EFSA ANS)Source →
    • Scientific Opinion on the safety of the change in the production method of L-glutamic acid (E620), monosodium L-glutamate (E621), monopotassium L-glutamate (E622), calcium di-L-glutamate (E623), monoammonium Lglutamate (E624) and magnesium di-L-glutamate (E625) (EFSA ANS)Source →
  • GLOBALJECFANOT SPECIFIEDJECFA evaluation lists ADI NOT SPECIFIED. Functional class: flavour enhancer, salt substitute.
    • JECFA evaluation lists ADI NOT SPECIFIED. Functional class: flavour enhancer, salt substitute.Source →
  • GLOBALJECFAEvaluatedJECFA evaluation record.
  • USEPAcommercial use observedEPA CPDat observed this chemical in 0 composition records across product categories including unclassified products. EPA CPDat classifies this chemical for functional uses including Flavouring and nutrient, Thickening agent.
    • EPA CPDat observed this chemical in 0 composition records across product categories including unclassified products. EPA CPDat classifies this chemical for functional uses including Flavouring and nutrient, Thickening agent.Source →
  • USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.
    • openFDA substance registry classifies this ingredient as chemical.Source →

Expert safety opinions

Independent scientific assessments cited by the records we hold, with the year and link where the record gives one.

  • JECFA

    Joint FAO/WHO Expert Committee on Food Additives

    • JECFA evaluation lists ADI NOT SPECIFIED. Functional class: flavour enhancer, salt substitute.

      Year not recorded · GLOBAL JECFA listing · Read the source →

    • JECFA evaluation record.

      Year not recorded · GLOBAL JECFA listing · Read the source →

  • EFSA

    European Food Safety Authority

    • Re-evaluation of glutamic acid (E 620), sodium glutamate (E 621), potassium glutamate (E 622), calcium glutamate (E 623), ammonium glutamate (E 624) and magnesium glutamate (E 625) as food additives (EFSA ANS)

      2017 · EU EFSA listing · Read the source →

    • Scientific Opinion on the safety of the change in the production method of L-glutamic acid (E620), monosodium L-glutamate (E621), monopotassium L-glutamate (E622), calcium di-L-glutamate (E623), monoammonium Lglutamate (E624) and magnesium di-L-glutamate (E625) (EFSA ANS)

      2015 · EU EFSA listing · Read the source →

Evidence & sources

No graded research studies for L-Glutamic acid ammonium salt yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

7 data sources

Where this comes from

  • EFSA OpenFoodTox

    regulatory · updated 2026-10-04

    Open →

  • EPA Chemical and Products Database

    exposure · updated February 8, 2019

    Open →

  • EPA DSSTox Identifiers

    chemistry · updated 2025-12-29

    Open →

  • FDA GSRS UNII

    registry · updated 2026-02-26

    Open →

  • WHO JECFA Database

    regulatory · updated 2026-10-04

    Open →

  • openFDA Substance

    registry · updated 2026-05-24

    Open →

  • PubChem Live Enrichment

    chemistry · updated 2026-05-17

    Open →
Reference links (2)
Openfda substance

codexalimentarius.net

Read →

Suitability

Context-specific fit derived from published classifications and the current ingredient evidence profile.

Food use

Food-use source coverage is present in the current record.

Good fit

The ingredient appears in food-oriented source coverage or allowed-use references, which makes food use easier to support than a context with no domain signal at all.

Fragrance avoidance

No fragrance-linked caution surfaced in the current profile.

Good fit

This ingredient does not currently read as a fragrance-linked driver in the published evidence and hazard profile.

Where it has been recorded

How often EPA CPDat has listed L-Glutamic acid ammonium salt in a product composition. These are source records, not Greenveil catalog products.

Named organisations

1

Typical roles

Flavour enhancer, salt substituteThickenerFlavouring
See products using L-Glutamic acid ammonium salt →

Catalog

Found in these products

Their ingredient lists include L-Glutamic acid ammonium salt; each product's own rating depends on its whole formula, so it is shown on the product page, not here.

See all 13 →Find products without it →