Official EU label nameGlossary entry 28778

THREONINE

This record confirms an official common ingredient name for EU cosmetic product labelling. It does not by itself confirm that the substance is permitted, unrestricted or safe.

Global evidence snapshot

The resolved identity has matching regulatory evidence in 0 of 13 indexed market datasets: 0 country records and 0 EU Annex records. Every result and evidence gap is listed below.

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Evidence gaps

Resolved identifiers

Resolved substance identity

CAS:72-19-580-68-2

EC:200-774-1201-300-6

Ingredient index records:

THREONINE

Cosmetic functions: ANTISTATIC, HAIR CONDITIONING, HAIR WAVING OR STRAIGHTENING

2-Amino-3-hydroxybutanoic acid

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2 matched or reported names

THREONINEthreonine

Regulatory evidence across markets

None of the 13 markets tracked here holds an imported rule under the name THREONINE.

That is a statement about this inventory, not about the law: no imported rule is not evidence that a substance is permitted. A rule may exist under a different name, under a CAS or EC number this glossary entry does not carry, or in a dataset not yet imported.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 72-19-5

CAS 72-19-5PubChem CID 6288

L-Threonine

L-threonine is an optically active form of threonine having L-configuration. It has a role as a micronutrient, a nutraceutical, a mouse metabolite, a Saccharomyces cerevisiae metabolite, a plant metabolite, an Escherichia coli metabolite, a human metabolite and an algal metabolite. It is a L-alpha-amino acid, an aspartate family amino acid, a threonine and a proteinogenic amino acid. It is a conjugate base of a L-threoninium. It is a conjugate acid of a L-threoninate. It is an enantiomer of a D-threonine. It is a tautomer of a L-threonine zwitterion. — ChEBI

IUPAC name: (2S,3R)-2-amino-3-hydroxybutanoic acid

Molecular formula: C4H9NO3
Molecular weight: 119.12 g/mol
Exact mass: 119.058243149 Da
XLogP3: -2.9
Topological polar surface area: 83.6 Å²
Hydrogen-bond donors: 3
Hydrogen-bond acceptors: 4
Covalent units: 1
Defined stereocentres: 2

Also known as

threonineThreoninL-(-)-Threonine(S)-Threonine2-amino-3-hydroxybutyric acidTreonina(2S,3R)-2-Amino-3-hydroxybutyric acidThreoninum

16 more reported names

L-ThreoninL-thr(2S)-threonineL-2-Amino-3-hydroxybutyric acid(2S,3R)-(-)-ThreonineL-alpha-Amino-beta-hydroxybutyric acidFEMA NO. 4710NSC-16589NSC-467012ZD004190SCHEBI:16857(R-(R*,S*))-2-Amino-3-hydroxybutanoic acid[R-(R*,S*)]-2-Amino-3-hydroxybutanoic acidl threonineL-Threonine HighL-Threonine 7425

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External database identifiers

ChEBI:CHEBI:16857
ChEMBL:CHEMBL291747
EPA DTXSID:DTXSID2046412
EPA DTXSID:DTXSID70893087
PubMed:29968805
PubMed:26262998
PubMed:23124343
PubMed:23118994
PubMed:23110047
PubMed:23107522
PubMed:23104914
PubMed:23093938
PubMed:23083207
PubMed:23080256
PubMed:23079773
PubMed:23071575

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Additional authoritative substance research

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Cosmetic Ingredient Review safety assessments FDA Global Substance Registration System ILO/WHO International Chemical Safety Cards Japan NITE-CHRIP NIOSH Pocket Guide to Chemical Hazards OECD eChemPortal US EPA CompTox CTX APIs

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Official source and scope

Imported from Commission Implementing Decision (EU) 2025/1175 (dataset version EU 2025/1175). The glossary supplies common ingredient names for the ingredient list required by Article 19(1)(g); it is not an approval or safety list.

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