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L-Alanine

CAS 25191-17-7 · 60/100 · High conf.

Also registered as 10 other CAS numbers

26336-61-8 · 77160-91-9 · 130380-93-7 · 56-41-7 · 6898-94-8 · 115967-49-2 · 170805-71-7 · 759445-89-1 · 787635-21-6 · 1150316-17-8

L-Alanine chemical structure

Concern score

60/100High concern based on regulatory listings.
High confidence

L-Alanine in plain language

What it is

Also known as Alanine · L-​Alanine · (2S)-2-AMINOPROPANOIC acid · L-2-AMINOPROPANOIC acid · (2S)-2-aminopropanoate · (S)-(+)-Alanine

Show all 21 names

(S)-2-Aminopropanoic acid · (S)-Alanine · 1561: PN: US20060223088 SEQID: 1571 claimed protein · 2-Aminopropionic acid · 2-Ammoniopropanoate · Alanine, L- · Alaninum · L-(+)-Alanine · L-2-Aminopropionic acid · L-S-Aminopropionic acid · L-alpha-Aminopropionic acid · L-alpha-alanine · Propanoic acid, 2-amino-, (S)- · alanina · alpha-Aminopropionic acid

What it does

We don't have a plain-language description for L-Alanine yet.

Is it a concern?
High concern: no hazard classifications on record.

Why it's flagged

EPA DSSTox provides the canonical identifier, structure, and synonym profile for this chemical.

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-Alanine appears in these published regulatory listings.

  • EUEFSAEFSA opinion2 entries
    • Scientific Opinion on the safety and efficacy of the use of amino acids (chemical group 34) when used as flavourings for all animal species (EFSA FEEDAP)Source →
    • Amino acids from chemical group 34. Flavouring Group Evaluation 26, Revision 1. Scientific opinion of the Panel on Food Additives, Flavourings, Processing Aids and Materials in contact with Food (AFC) (EFSA AFC)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

    No JECFA evaluation on file.

  • EFSA

    European Food Safety Authority

    • Scientific Opinion on the safety and efficacy of the use of amino acids (chemical group 34) when used as flavourings for all animal species (EFSA FEEDAP)

      2014 · EU EFSA listing · Read the source →

    • Amino acids from chemical group 34. Flavouring Group Evaluation 26, Revision 1. Scientific opinion of the Panel on Food Additives, Flavourings, Processing Aids and Materials in contact with Food (AFC) (EFSA AFC)

      2008 · EU EFSA listing · Read the source →

Evidence & sources

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

5 data sources

Where this comes from

  • EFSA OpenFoodTox

    regulatory · updated 2026-10-04

    Open →
  • EPA DSSTox Identifiers

    chemistry · updated 2025-12-29

    Open →
  • FDA GSRS UNII

    registry · updated 2026-02-26

    Open →
  • openFDA Substance

    registry · updated 2026-05-24

    Open →
  • PubChem Live Enrichment

    chemistry · updated 2026-05-17

    Open →

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.

Catalog

Found in these products

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

Co-occurrence

Often appears with

Ingredients that frequently appear alongside L-Alanine in the catalog.