Is MYRETH-4 safe to use in EU cosmetics?

MYRETH-4 is listed in the EU CosIng ingredient inventory with no direct annex restriction records linked at this time. Always verify against the current official CosIng database before formulating.

How do I check if my formula contains MYRETH-4?

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 7716115/10/2010

MYRETH-4

Poly(oxy-1,2-ethanediyl), .alpha.-tetradecyl-.omega.-hydroxy-

MYRETH-4 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 27306-79-2

CAS 27306-79-2PubChem CID 16491

Tetradecyl ethyleneglycol monoether

The CIR Expert Panel concluded that the alkyl PEG ethers, listed below, are safe in the present practices of use and concentration described in this safety assessment when formulated to be nonirritating. This assessment is also intended to address future alkyl PEG ether cosmetic ingredients that vary from those ingredients recited herein only by the number of ethylene glycol repeat units...Myreth-2... — Cosmetic Ingredient Review (CIR)

IUPAC name: 2-tetradecoxyethanol

Molecular formula: C16H34O2
Molecular weight: 258.44 g/mol
Exact mass: 258.255880323 Da
XLogP3: 6.2
Topological polar surface area: 29.5 Å²
Hydrogen-bond donors: 1
Hydrogen-bond acceptors: 2
Covalent units: 1
Defined stereocentres: 0

Also known as

2-(Tetradecyloxy)ethanol2136-70-1Myristyl monoethoxylateEthanol, 2-(tetradecyloxy)-Ethylene glycol monotetradecyl ether2-TetradecyloxyethanolIAC0DWO8W5EINECS 218-371-4

14 more reported names

AI3-33896MYRETH-2TetradecylglycolC14E1RefChem:896947Ethanol, 2(tetradecyloxy)218-371-42-(tetradecyloxy)ethan-1-ol2-tetradecyloxyethan-1-ol2-tetradecyl-oxy-ethanolUNII-IAC0DWO8W5AS-58088TETRAETHYLENEGLYCOLMONOTETRADECYLETHERCS-0333623

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

EPA DTXSID:DTXSID50872618

Retrieved from NIH PubChem on 2026-09-02 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

PubChem 2D chemical structure for CAS 39034-24-7

CAS 39034-24-7PubChem CID 4649131

3,6,9,12-Tetraoxahexacosan-1-ol

IUPAC name: 2-[2-[2-(2-tetradecoxyethoxy)ethoxy]ethoxy]ethanol

Molecular formula: C22H46O5
Molecular weight: 390.6 g/mol
Exact mass: 390.33452456 Da
XLogP3: 5.7
Topological polar surface area: 57.2 Å²
Hydrogen-bond donors: 1
Hydrogen-bond acceptors: 5
Covalent units: 1
Defined stereocentres: 0

Also known as

RefChem:91691626-427-8Tetraethylene glycol monotetradecyl etherOARYCGKAYBBHAM-UHFFFAOYSA-NTetraethylene glycol monotetradecyl ether, >=99.0% (TLC)

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

EPA DTXSID:DTXSID30959875

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 MYRETH-4

INCI name

MYRETH-4

Description

Poly(oxy-1,2-ethanediyl), .alpha.-tetradecyl-.omega.-hydroxy-

Record provenance

Inventory reference: 77161
Imported identity: MYRETH-4
Source update: 15/10/2010

European Commission CosIng source notes

Annex records for MYRETH-4

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 MYRETH-4 or related substances.

Key data

CAS

27306-79-2 / 39034-24-7

—

Restriction

—

Function

SURFACTANT - EMULSIFYING: Helping suspensions or dispersions of liquids in a second liquid by reducing the surface tension of the substances to be emulsified.

Official EU ingredient-name evidence

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

#17031 · MYRETH-4

Ingredients with overlapping formulation functions

MIPA-C12-14 SEC-PARETH-3 ACETATECLEANSING, SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING, SURFACTANT - FOAM BOOSTING, SURFACTANT…

MYRETH-10SURFACTANT - EMULSIFYING

MYRETH-2SURFACTANT - EMULSIFYING

MYRETH-3SURFACTANT - EMULSIFYING

MYRETH-5SURFACTANT - EMULSIFYING

MYRISTAMINE OXIDEANTISTATIC, CLEANSING, HAIR CONDITIONING, SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING, SURFACT…

MYRISTIC ACIDCLEANSING, PERFUMING, SURFACTANT - EMULSIFYING

MYRISTOYL ETHYL GLUCOSIDESURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING

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 MYRETH-4 appears in the CosIng inventory

The CosIng inventory lists MYRETH-4 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.

MYRETH-4 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

MYRETH-4 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, MYRETH-4 carries the following function designation(s):

SURFACTANT - EMULSIFYING

CAS 27306-79-2 / 39034-24-7 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.

Open INCI Checker

Source note for MYRETH-4

This page reproduces the CosIng inventory entry for MYRETH-4 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 MYRETH-4 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 MYRETH-4 and any linked EU annex restrictions or allergen flags.

INCI Checker

Search similar ingredients

Find other inventory ingredients and annex entries related to MYRETH-4, its identifiers or nearby name variants.