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CAS 3699-54-5 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.

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InventoryRef 8613415/10/2010

HYDROXYETHYL IMIDAZOLIDINONE

1-(2-hydroxyethyl)imidazolidin-2-one

HYDROXYETHYL IMIDAZOLIDINONE is listed in the EU CosIng inventory, but no direct annex records are linked on this page yet.

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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.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 3699-54-5

CAS 3699-54-5PubChem CID 77290

Hydroxyethyl imidazolidinone

IUPAC name: 1-(2-hydroxyethyl)imidazolidin-2-one

Molecular formula: C5H10N2O2
Molecular weight: 130.15 g/mol
Exact mass: 130.074227566 Da
XLogP3: -1.4
Topological polar surface area: 52.6 Å²
Hydrogen-bond donors: 2
Hydrogen-bond acceptors: 2
Covalent units: 1
Defined stereocentres: 0

Also known as

1-(2-Hydroxyethyl)-2-imidazolidinone2-Imidazolidinone, 1-(2-hydroxyethyl)-HydroxyethylethyleneureaNSC 5775N-(2-Hydroxyethyl)ethyleneurea1-(Hydroxyethyl)ethyleneureaN0K8F6P8IFEINECS 223-032-9

16 more reported names

AI3-24563NSC-5775EC 223-032-9SARTOMER SR 511N-(2-HYDROXYETHYL)IMIDAZOLIDONEN-(.BETA.-HYDROXYETHYL)-N,N'-ETHYLENE UREARefChem:789470HYDROXYETHYL IMIDAZOLIDINONE [INCI]N-(BETA-HYDROXYETHYL)-N,N'-ETHYLENE UREA223-032-9InChI=1/C5H10N2O2/c8-4-3-7-2-1-6-5(7)9/h8H,1-4H2,(H,6,9UNII-N0K8F6P8IFNSC5775HEEU1-(2-Hydroxyethyl)-2hydroxyethyl-imidazoridinone

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

ChEMBL:CHEMBL3188894
EPA DTXSID:DTXSID0029260

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 HYDROXYETHYL IMIDAZOLIDINONE

INCI name

HYDROXYETHYL IMIDAZOLIDINONE

Description

1-(2-hydroxyethyl)imidazolidin-2-one

Record provenance

Inventory reference: 86134
Imported identity: HYDROXYETHYL IMIDAZOLIDINONE
Source update: 15/10/2010

European Commission CosIng source notes

Annex records for HYDROXYETHYL IMIDAZOLIDINONE

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Key data

CAS

3699-54-5

223-032-9

Restriction

—

Function

HUMECTANT: Retaining and/or preserving the moisture in a product during use.

Official EU ingredient-name evidence

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

#13256 · HYDROXYETHYL IMIDAZOLIDINONE

Ingredients with overlapping formulation functions

HYDROLYZED TRIGONELLA FOENUM-GRAECUM SEED EXTRACTFILM FORMING, HUMECTANT, SKIN CONDITIONING

HYDROLYZED WHEAT BRANANTIOXIDANT, HUMECTANT, SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT, SKIN PROTECTING, UV ABSOR…

HYDROLYZED WOOLHAIR CONDITIONING, HUMECTANT, SKIN PROTECTING

HYDROLYZED ZIZANIA LATIFOLIA LEAF/STEM EXTRACTHUMECTANT, SKIN CONDITIONING

HYDROXYETHYL PALMITYL OXYHYDROXYPROPYL PALMITAMIDEHUMECTANT, SKIN CONDITIONING - EMOLLIENT

HYDROXYETHYL SORBITOLHUMECTANT, SKIN CONDITIONING

HYDROXYETHYL UREAHAIR CONDITIONING, HUMECTANT, SKIN CONDITIONING

HYDROXYETHYLCELLULOSE/PHOSPHORYLCHOLINE GLYCOL ACRYLATE COPOLYMERFILM FORMING, HAIR CONDITIONING, HUMECTANT, SKIN 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 HYDROXYETHYL IMIDAZOLIDINONE appears in the CosIng inventory

The CosIng inventory lists HYDROXYETHYL IMIDAZOLIDINONE 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.

HYDROXYETHYL IMIDAZOLIDINONE 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

HYDROXYETHYL IMIDAZOLIDINONE 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, HYDROXYETHYL IMIDAZOLIDINONE carries the following function designation(s):

HUMECTANT

CAS 3699-54-5 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.

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Source note for HYDROXYETHYL IMIDAZOLIDINONE

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

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Tools & next steps

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