Is DEDM HYDANTOIN safe to use in EU cosmetics?

DEDM HYDANTOIN 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.

What other records share CAS 26850-24-8?

CAS 26850-24-8 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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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 3318315/10/2010

DEDM HYDANTOIN

1,3-bis(2-hydroxyethyl)-5,5-dimethylimidazolidine-2,4-dione

DEDM HYDANTOIN 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 26850-24-8

CAS 26850-24-8PubChem CID 117879

1,3-Bis(2-hydroxyethyl)-5,5-dimethyl-2,4-imidazolidinedione

IUPAC name: 1,3-bis(2-hydroxyethyl)-5,5-dimethylimidazolidine-2,4-dione

Molecular formula: C9H16N2O4
Molecular weight: 216.23 g/mol
Exact mass: 216.11100700 Da
XLogP3: -1.5
Topological polar surface area: 81.1 Å²
Hydrogen-bond donors: 2
Hydrogen-bond acceptors: 4
Covalent units: 1
Defined stereocentres: 0

Also known as

2,4-Imidazolidinedione, 1,3-bis(2-hydroxyethyl)-5,5-dimethyl-1,3-Di(hydroxyethyl)-5,5-dimethylhydantoinEINECS 248-052-5RefChem:4139551,3-Bis(2-hydroxyethyl)-5,5-dimethylhydantoinDEDM HydantoinDiethylol dimethyl hydantoinDantocol DHE

13 more reported names

Hydantoin, 1,3-bis(2-hydroxyethyl)-5,5-dimethyl-20Y07BBS8TN,N'-Bis(2-hydroxyethyl)dimethylhydantoin1,3-bis(hydroxyethyl)-5,5-dimethylhydantoin13-Bis(2-hydroxyethyl)-55-dimethylhydantoin1,3-Bis(.beta.-hydroxyethyl)-5,5-dimethylhydantoinUNII-20Y07BBS8T1,3-di(2-hydroxyethyl)-5,5-dimethylhydantoinAS-84121DI(2-HYDROXYETHYL)DIMETHYLHYDANTOINDi-(2-hydroxyethyl)-5,5-dimethyl hydantoin1,3-di(beta-hydroxyethyl)-5,5-dimethylhydantoin1,3-bis(2-hydroxyethyl)-5,5-dimethyl-imidazolidine-2,4-dione

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

EPA DTXSID:DTXSID0067260

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 DEDM HYDANTOIN

INCI name

DEDM HYDANTOIN

Description

1,3-bis(2-hydroxyethyl)-5,5-dimethylimidazolidine-2,4-dione

Record provenance

Inventory reference: 33183
Imported identity: DEDM HYDANTOIN
Source update: 15/10/2010

European Commission CosIng source notes

Annex records for DEDM HYDANTOIN

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Key data

CAS

26850-24-8

248-052-5

Restriction

—

Function

ANTIMICROBIAL: Preventing and/or slowing down microbial growth.

Official EU ingredient-name evidence

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

#8245 · DEDM HYDANTOIN

Ingredients with overlapping formulation functions

DECAPEPTIDE-53 AMIDEANTIMICROBIAL

DECAPEPTIDE-54 AMIDEANTIMICROBIAL

DECAPEPTIDE-62 AMIDEANTIMICROBIAL; ANTI-SEBUM; SKIN PROTECTING

DECYLOXAZOLIDINONEANTIMICROBIAL, PLASTICISER, SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT, SURFACTANT - CLEANSING

DEDM HYDANTOIN DILAURATEANTIMICROBIAL

DENATURED LYSOZYMEANTIMICROBIAL

DENDROPANAX MORBIFERUS ADVENTITIOUS ROOT EXTRACTANTIMICROBIAL, ANTIOXIDANT, HAIR CONDITIONING, HUMECTANT, SKIN PROTECTING

DENDROPANAX MORBIFERUS CALLUS CULTURE EXTRACTANTIMICROBIAL, ANTIOXIDANT, HAIR CONDITIONING, SKIN CONDITIONING, SKIN PROTECTING

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 DEDM HYDANTOIN appears in the CosIng inventory

The CosIng inventory lists DEDM HYDANTOIN 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.

DEDM HYDANTOIN 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

DEDM HYDANTOIN 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, DEDM HYDANTOIN carries the following function designation(s):

ANTIMICROBIAL

CAS 26850-24-8 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 DEDM HYDANTOIN

This page reproduces the CosIng inventory entry for DEDM HYDANTOIN 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 DEDM HYDANTOIN 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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