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InventoryRef 3545315/10/2010

MYRISTYL BETAINE

(Carboxylatomethyl)dimethyltetradecylammonium

MYRISTYL BETAINE 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 2601-33-4
CAS 2601-33-4PubChem CID 64672

Myristyl Betaine

The CIR Expert Panel concluded that the eleven alkyl betaines listed below are safe in the present practices of use and concentration in cosmetics, when formulated to be non-irritating...Myristyl Betaine... Cosmetic Ingredient Review (CIR)

IUPAC name
2-[dimethyl(tetradecyl)azaniumyl]acetate
Molecular formula
C18H37NO2
Molecular weight
299.5 g/mol
Exact mass
299.282429423 Da
XLogP3
7.2
Topological polar surface area
40.1 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
2
Covalent units
1
Defined stereocentres
0

Also known as

1-Tetradecanaminium, N-(carboxymethyl)-N,N-dimethyl-, inner saltMyristyl dimethyl glycineMyristyl dimethyl betaine95C19D1X0BEINECS 220-006-9N-TETRADECYL BETAINE1-Tetradecanaminium, N-(carboxymethyl)-N,N-dimethyl-, hydroxide, inner salt(Carboxylatomethyl)dimethyltetradecylammonium
16 more reported names
Ammonium, (carboxymethyl)dimethyltetradecyl-, hydroxide, inner saltN-(Carboxymethyl)-N,N-dimethyl-1-tetradecanaminium hydroxide, inner saltRefChem:819753MYRISTYL BETAINE [INCI](N,N-Dimethylmyristylammonio)acetateN-TETRADECYL-N,N-DIMETHYLGLYCINE2-(dimethyl(tetradecyl)ammonio)acetate2-[dimethyl(tetradecyl)ammonio]acetateN-(Carboxymethyl)-N,N-dimethyl-1-tetradecanaminium hydroxide inner saltUNII-95C19D1X0Bmyristyldimethyl betaineTYD-01183[Dimethyl(tetradecyl)azaniumyl]acetateHY-W250190CS-0310490(N,N-Dimethylmyristylammonio)acetate, >=97.0% (HPLC)
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 MYRISTYL BETAINE

INCI name

MYRISTYL BETAINE

Description

(Carboxylatomethyl)dimethyltetradecylammonium

Record provenance

Inventory reference
35453
Imported identity
MYRISTYL BETAINE
Source update
15/10/2010
European Commission CosIng source notes

Key data

Restriction
Function
ANTISTATIC
Preventing and/or reducing static electricity by neutralising electrical charge on surfaces.
CLEANSING
Helping to keep the body surface clean.
HAIR CONDITIONING
Enhancing the appearance and feel of hair. Leaving the hair easy to comb, supple, soft and shiny and/or imparting volume, lightness, gloss, texture, etc.
SKIN CONDITIONING
Maintaining the skin in good condition.
SURFACTANT - CLEANSING
Wetting body surfaces, emulsifying or solubilizing oils, and suspending soil (generally, such ingredients contribute to the foaming and lathering properties of cleansing products).
SURFACTANT - FOAM BOOSTING
Increasing foaming capacity and/or stabilizing foams in general.

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 MYRISTYL BETAINE appears in the CosIng inventory

The CosIng inventory lists MYRISTYL BETAINE 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.

MYRISTYL BETAINE is also tagged with 6 cosmetic functions 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

MYRISTYL BETAINE 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, MYRISTYL BETAINE carries the following function designation(s):

CAS 2601-33-4 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 MYRISTYL BETAINE

This page reproduces the CosIng inventory entry for MYRISTYL BETAINE 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 MYRISTYL BETAINE 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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