Official EU label nameGlossary entry 9195

DIPEPTIDE-9

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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Resolved identifiers

Resolved substance identity

CAS:17105-15-6

Ingredient index records:

DIPEPTIDE-9

Cosmetic functions: HAIR CONDITIONING, HUMECTANT, SKIN CONDITIONING

Dipeptide-9 is a synthetic peptide consisting of glutamic acid and lysine

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1 matched or reported name

DIPEPTIDE-9

Official name structure and source evidence

This section separates facts supplied by external records from structure derived only from the exact official label wording.

Structured interpretation of the official EU INCI label

Matchedlabel-analysis-v1 · EU 2025/1175

The official label identifies a peptide- or protein-related cosmetic material.

Identity type inferred from wording: peptide_or_protein

This structure is derived only from the official label wording. It does not establish composition, concentration, chemical equivalence, safety or regulatory permission.

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Regulatory evidence across markets

None of the 13 markets tracked here holds an imported rule under the name DIPEPTIDE-9.

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 17105-15-6

CAS 17105-15-6PubChem CID 7015685

epsilon-(gamma-Glutamyl)lysine

Epsilon-(gamma-glutamyl)lysine is an N6-acyl-L-lysine derivative in which the acyl group is specified as gamma-glutamyl. It is a tautomer of an epsilon-(gamma-glutamyl)lysine dizwitterion. — ChEBI

IUPAC name: (2S)-2-amino-6-[[(4S)-4-amino-4-carboxybutanoyl]amino]hexanoic acid

Molecular formula: C11H21N3O5
Molecular weight: 275.30 g/mol
Exact mass: 275.14812078 Da
XLogP3: -6.3
Topological polar surface area: 156.0 Å²
Hydrogen-bond donors: 5
Hydrogen-bond acceptors: 7
Covalent units: 1
Defined stereocentres: 2

Also known as

epsilon-(gamma-Glutamyl)-lysineepsilon-(gamma-L-Glutamyl)-L-lysineN(6)-L-gamma-Glutamyl-L-lysineEpsilon-(gamma-glu)-lysN(epsilon)-(gamma-Glutamyl)-lysineCHEBI:88494O19B8F457Cepsilon-(gamma-Glutamyl)lysine isodipeptide

16 more reported names

GGEL peptide(2S)-2-amino-6-[(4S)-4-amino-4-carboxybutanamido]hexanoic acid(2S)-2-amino-6-((4S)-4-amino-4-carboxybutanamido)hexanoic acid(2S)-2-amino-6-(((4S)-4-amino-4-carboxybutanoyl)amino)hexanoic acid(2S)-2-azaniumyl-6-(((4S)-4-azaniumyl-4-carboxylatobutanoyl)amino)hexanoateRefChem:921070H-Glu(H-Lys-OH)-OH(S)-2-Amino-6-((S)-4-amino-4-carboxybutanamido)hexanoic acidgamma-Glu-epsilon-Lys (TFA)gamma-Glu-epsilon-Lys|A-Glu-|A-Lysepsilon-(gamma-L-Glutamyl)lysineN6-L-gamma-Glutamyl-L-lysineNepsilon-(gamma-Glutamyl)-L-lysinegamma-glutamyl-epsilon-lysineJPKNLFVGUZRHOB-YUMQZZPRSA-N

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External database identifiers

ChEBI:CHEBI:88494
PubMed:18938126
PubMed:18691394
PubMed:18064578
PubMed:15924212
PubMed:15891906
PubMed:15350514
PubMed:12878121
PubMed:11950211
PubMed:11739625
PubMed:11592598
PubMed:11378245

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

Each link searches that source for this identity. A link is a research route, not a claim that the source holds an exact record. What each source is, and its legal weight

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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