What other records share CAS 171263-26-6?

CAS 171263-26-6 may appear across multiple EU annex records. The CAS lookup page shows all Annex II–VI entries sharing this identifier, useful for identifying cross-annex regulatory status of the same chemical substance.

How do I check if my formula contains PALMITOYL HEXAPEPTIDE-12?

Use the INCI Checker to screen a full ingredient list across selected markets, or use the substance market comparison to review this identity across all supported market datasets.

InventoryRef 8566609/12/2015

PALMITOYL HEXAPEPTIDE-12

Glycine, N-(1-oxohexadecyl)-L-valylglycyl-L-valyl-L-alanyl-L-prolyl-

PALMITOYL HEXAPEPTIDE-12 is listed in the EU CosIng inventory, but no direct annex records are linked on this page yet.

INCI Checker Compare all markets Search similar

Regulatory evidence by market

No rule for this ingredient has been imported for any of the 13 markets tracked here.

That describes this inventory, not the law. No imported rule is not evidence that an ingredient is permitted: a rule may exist under another name or identifier, or in a dataset not yet imported here.

Markets and their official sources Search every market for this name

Chemical identity and properties

PubChem 2D chemical structure for CAS 171263-26-6

CAS 171263-26-6PubChem CID 10212452

Palmitoyl Hexapeptide-12

IUPAC name: 2-[[(2S)-1-[(2S)-2-[[(2S)-2-[[2-[[(2S)-2-(hexadecanoylamino)-3-methylbutanoyl]amino]acetyl]amino]-3-methylbutanoyl]amino]propanoyl]pyrrolidine-2-carbonyl]amino]acetic acid

Molecular formula: C38H68N6O8
Molecular weight: 737.0 g/mol
Exact mass: 736.50986315 Da
XLogP3: 6.1
Topological polar surface area: 203.0 Å²
Hydrogen-bond donors: 6
Hydrogen-bond acceptors: 8
Covalent units: 1
Defined stereocentres: 4

Also known as

HO4ZT5S86CPalmitoyl hexapeptide-12 [INCI]N-Palmitoyl-val-gly-val-ala-pro-glyGlycine, N-(1-oxohexadecyl)-L-valylglycyl-L-valyl-L-alanyl-L-prolyl-RefChem:858424Lipopeptide acetate2-((S)-1-((2S,5S,11S)-5,11-Diisopropyl-2-methyl-4,7,10,13-tetraoxo-3,6,9,12-tetraazaoctacosan-1-oyl)pyrrolidine-2-carboxamido)acetic acidC38H68N6O8

16 more reported names

N-(1-Oxohexadecyl)-L-valylglycyl-L-valyl-L-alanyl-L-prolylglycineLipopeptideBiopeptide ElPalmitoyl hexapeptide 12Palmitoyl hexapeptide-12?UNII-HO4ZT5S86CJFSQSDAOQLNSQI-DTBJPNGVSA-NPalmitoyl Hexapeptide-12 (Powder)Palmitoyl Hexapeptide-12 (Liquid)DA-75030DS-11734HY-66015CS-0005655palmitoyl-L-valylglycyl-L-valyl-L-alanyl-L-prolylglycineN-Hexadecanoyl-L-valylglycyl-L-valyl-L-alanyl-L-prolylglycine2-((S)-1-((2S,5S,11S)-5,11-Diisopropyl-2-methyl-4,7,10,13-tetraoxo-3,6,9,12-tetraazaoctacosan-1-oyl)pyrrolidine-2-carboxamido)aceticacid

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

EPA DTXSID:DTXSID401018159

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

What the official INCI name states

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

Identity type 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.

Inventory details for PALMITOYL HEXAPEPTIDE-12

INCI name

PALMITOYL HEXAPEPTIDE-12

Description

Glycine, N-(1-oxohexadecyl)-L-valylglycyl-L-valyl-L-alanyl-L-prolyl-

Record provenance

Inventory reference: 85666
Imported identity: PALMITOYL HEXAPEPTIDE-12
Source update: 09/12/2015

European Commission CosIng source notes

Annex records for PALMITOYL HEXAPEPTIDE-12

Browse

Browse EU annexes

Explore Annex II–VI to see which substances are prohibited, restricted or permitted under specific conditions.

Search annex entries

Search the annex database for entries matching PALMITOYL HEXAPEPTIDE-12 or related substances.

Key data

CAS

171263-26-6

—

Restriction

—

Function

SKIN CONDITIONING: Maintaining the skin in good condition.

Official EU ingredient-name evidence

The ingredient name exactly matches the official 2025 EU glossary of common ingredient names.

#18758 · PALMITOYL HEXAPEPTIDE-12

Ingredients with overlapping formulation functions

PALMITOYL HEPTAPEPTIDE-18SKIN CONDITIONING

PALMITOYL HEPTAPEPTIDE-27SKIN CONDITIONING

PALMITOYL HEPTAPEPTIDE-48SKIN CONDITIONING

PALMITOYL HEPTAPEPTIDE-5SKIN CONDITIONING

PALMITOYL HEXAPEPTIDE-14SKIN CONDITIONING

PALMITOYL HEXAPEPTIDE-15SKIN CONDITIONING

PALMITOYL HEXAPEPTIDE-19SKIN CONDITIONING

PALMITOYL HEXAPEPTIDE-32SKIN CONDITIONING

Additional official and scientific sources

11 external databases to check this identity in

Each link searches that source for this identity. What each source is, and its legal weight

ECHA CHEM / Information on chemicals PubChem PUG REST EU Safety Gate cosmetic product alerts ECHA CHEM US EPA CompTox 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

How PALMITOYL HEXAPEPTIDE-12 appears in the CosIng inventory

The CosIng inventory lists PALMITOYL HEXAPEPTIDE-12 as a cosmetic ingredient and this page links it to 0 annex records. The inventory entry captures names and identifiers, while the annex records show where the substance is prohibited, restricted or positively listed in EU cosmetics law.

PALMITOYL HEXAPEPTIDE-12 is also tagged with 1 cosmetic function in the official data. Function labels describe intended use, but they do not replace regulatory review of linked annex records before formulation or labelling work.

Frequently asked questions

PALMITOYL HEXAPEPTIDE-12 is listed in the EU CosIng ingredient inventory with no direct annex restriction records linked at this time. Absence of an annex link does not guarantee unrestricted use — always verify against the current official CosIng database before formulating.

According to the EU CosIng inventory, PALMITOYL HEXAPEPTIDE-12 carries the following function designation(s):

SKIN CONDITIONING

CAS 171263-26-6 may appear across multiple EU annex records. Viewing the CAS lookup page shows all Annex II–VI entries sharing this identifier, which is useful for identifying cross-annex regulatory status of the same chemical substance.

View CAS records

Use the INCI Checker to screen a full ingredient list across selected markets, or compare this substance across all supported market datasets.

Open INCI Checker

Source note for PALMITOYL HEXAPEPTIDE-12

This page reproduces the CosIng inventory entry for PALMITOYL HEXAPEPTIDE-12 from public European Commission cosmetic ingredient materials and shows linked identifiers even when no direct annex match is currently attached.

Use this inventory page to research PALMITOYL HEXAPEPTIDE-12 and compare linked records, but verify restrictions and legal status against the current official source text and law before making regulatory decisions.

View sources View updates

Tools & next steps

Check your formula

Scan a full INCI list to detect PALMITOYL HEXAPEPTIDE-12 and any linked EU annex restrictions or allergen flags.

INCI Checker

Search similar ingredients

Find other inventory ingredients and annex entries related to PALMITOYL HEXAPEPTIDE-12, its identifiers or nearby name variants.