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InventoryRef 9174519/09/2014

CYCLO PEG-6

18-Crown-6 Ether,1,4,7,10,13,16-Hexaoxacyclooctadecane,1,4,7,10,13,16-Hexaoxacyclooctadecane; 18-Crown ether-6

CYCLO PEG-6 is listed in the EU CosIng inventory, but no direct annex records are linked on this page yet.

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.

Chemical identity and properties

PubChem 2D chemical structure for CAS 17455-13-9
CAS 17455-13-9PubChem CID 28557

18-Crown-6

18-crown-6 is a crown ether that is cyclooctadecane in which the carbon atoms at positions 1, 4, 7, 10, 13 and 16 have been replaced by oxygen atoms. It has a role as a phase-transfer catalyst. It is a saturated organic heteromonocyclic parent and a crown ether. ChEBI

IUPAC name
1,4,7,10,13,16-hexaoxacyclooctadecane
Molecular formula
C12H24O6
Molecular weight
264.31 g/mol
Exact mass
264.15728848 Da
XLogP3
-0.7
Topological polar surface area
55.4 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
6
Covalent units
1
Defined stereocentres
0

Also known as

Ethylene oxide cyclic hexamerCHEBI:3239763J177NC5BNSC-159836RefChem:79335241-473-518-crown-6-ether18-Crown-6 ether
16 more reported names
18-Crown 6-Ether18-crown61,4,7,10,13,16-Hexaoxacyclooctadecane (18-Crown-6)CCRIS 3587EINECS 241-473-5NSC 159836BRN 1619616UNII-63J177NC5B1,4,7,10,13,16-Hexanoxacyclooctadecane18-Crown-6 ether; Ethylene Oxide Cyclic Hexamer; 1,4,7,10,13,16-Hexaoxacyclooctadecane; NSC 159836;18-crown-6etherO4B18-Crownether-6hexaoxacyclo-octadecane18crown-618-crown 6
External database identifiers

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

Inventory details for CYCLO PEG-6

INCI name

CYCLO PEG-6

Description

18-Crown-6 Ether,1,4,7,10,13,16-Hexaoxacyclooctadecane,1,4,7,10,13,16-Hexaoxacyclooctadecane; 18-Crown ether-6

Record provenance

Inventory reference
91745
Imported identity
CYCLO PEG-6
Source update
19/09/2014
European Commission CosIng source notes

Key data

Restriction
Function
NOT REPORTED
No function currently reported.

Official EU ingredient-name evidence

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

Ingredients with overlapping formulation functions

Additional official and scientific sources

11 external databases to check this identity in

How CYCLO PEG-6 appears in the CosIng inventory

The CosIng inventory lists CYCLO PEG-6 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.

CYCLO PEG-6 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

CYCLO PEG-6 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, CYCLO PEG-6 carries the following function designation(s):

CAS 17455-13-9 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.

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

Source note for CYCLO PEG-6

This page reproduces the CosIng inventory entry for CYCLO PEG-6 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 CYCLO PEG-6 and compare linked records, but verify restrictions and legal status against the current official source text and law before making regulatory decisions.

Tools & next steps

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