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Imidazolidinyl Urea

CAS 39236-46-9 · Formula C11H16N8O8 · MW 388.29 g/mol

A water-soluble, formaldehyde-releasing antimicrobial preservative for cosmetic and personal-care systems. Per CIR and Industry references record it functions as an antimicrobial preservative in cosmetics and personal-care products.

Part of Preservatives & Antimicrobials
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CAS Number
39236-46-9
Formula
C11H16N8O8
Molecular Weight
388.29 g/mol
Material Family
Acids & Salts
At a Glance
Material Family
Acids & Salts
Record Type
Pure compound
Primary Role
Preservation · Biocidal Action
Functional Roles
Preservation Biocidal Action
INCI Name
IMIDAZOLIDINYL UREA
CosIng Functions
PRESERVATIVE
Industries Served
Agriculture Beauty & Personal Care
Applications & Use Cases
  • ▸ Preservative: antimicrobial preservative in cosmetic formulations (CIR-listed)
  • ▸ Personal care: preservation of creams, lotions, and toiletries
  • ▸ Industrial preservation: microbial control in water-based products
Safety & Handling
Full SDS available on request

A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.

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Chemical Identity
CAS Number
39236-46-9
Molecular Formula
C11H16N8O8
Molecular Weight
388.29 g/mol
IUPAC Name
1-[3-(hydroxymethyl)-2,5-dioxoimidazolidin-4-yl]-3-[[[3-(hydroxymethyl)-2,5-dioxoimidazolidin-4-yl]carbamoylamino]methyl]urea
INCI Name
IMIDAZOLIDINYL UREA
PubChem CID
38258
InChI Key
ZCTXEAQXZGPWFG-UHFFFAOYSA-N
Synonyms & Trade Names
Imidazolidinyl urea IMIDUREA Germall 115 Methanebis(N,N'-(5-ureido-2,4-diketotetrahydroimidazole)-N,N-dimethylol) N,N''-Methylenebis(N'-(1-(hydroxymethyl)-2,5-dioxo-4-imidazolidinyl)urea) N,N''-methylenebis(N'-(3-(hydroxymethyl)-2,5-dioxo-4-imidazolidinyl)urea) Urea, N,N''-methylenebis(N'-(3-(hydroxymethyl)-2,5-dioxo-4-imidazolidinyl)- imidazolidinylurea N',N'''-methanediylbis{1-[3-(hydroxymethyl)-2,5-dioxoimidazolidin-4-yl]urea} N',N'''-methanediylbis(1-(3-(hydroxymethyl)-2,5-dioxoimidazolidin-4-yl)urea) 1,1'-Methylenebis(3-(3-(hydroxymethyl)-2,5-dioxoimidazolidin-4-yl)urea)
Full Description

Imidazolidinyl urea (CAS 39236-46-9) is a heterocyclic urea condensation product. Per CIR and Industry references record it functions as an antimicrobial preservative in cosmetics and personal-care products.

Frequently Asked Questions

What is imidazolidinyl urea used for?

Imidazolidinyl urea (CAS 39236-46-9) is a heterocyclic urea condensation product that functions as an antimicrobial preservative. Per CIR and Industry references record it is used for microbial control in cosmetics, creams, lotions, toiletries, and water-based industrial products.

What products contain imidazolidinyl urea?

It is found in water-based personal-care and cosmetic formulations such as creams, lotions, and toiletries where it provides antimicrobial preservation. It is also used for microbial control in some water-based industrial products.

What is the difference between imidazolidinyl urea and diazolidinyl urea?

Both are heterocyclic urea-derived antimicrobial preservatives used in personal care, but they are distinct compounds with different CAS numbers and structures; diazolidinyl urea is a separate condensation product. Specify the exact INCI name when ordering to avoid substitution.

Is imidazolidinyl urea the same as urea?

No. Urea is the simple compound CH4N2O, whereas imidazolidinyl urea (C11H16N8O8) is a more complex heterocyclic condensation product used as a preservative, not a humectant. They are not interchangeable in formulation.

Can I order imidazolidinyl urea in bulk with documentation?

RawSource supplies imidazolidinyl urea in bulk to formulators. Request a bulk quote with your target volume along with the CoA and SDS for handling, grade, and assay details.

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Disclaimer. Information on this page — including properties, identifiers, hazard, transport (DOT/UN) and tariff (HS) classifications, and applications — is provided for general reference and is compiled from authoritative public sources (e.g. PubChem/ECHA, 49 CFR 172.101, the Harmonized Tariff Schedule). Values are typical and are not a guaranteed specification; the Certificate of Analysis (CoA) for the lot purchased governs. Products are sold for industrial and professional use only. Nothing here is a medical, health, or efficacy claim or advice. Always consult the current Safety Data Sheet (SDS) before handling, storage, transport or disposal, and confirm regulatory status, classification and suitability for your application and jurisdiction. Hazard, transport and tariff classifications must be verified for your specific shipment. RawSource makes no warranty, express or implied, and assumes no liability for use of this information. Trademarks. Third-party trademarks and brand names are the property of their respective owners; any reference is nominative — used only to identify a comparable product — and does not imply affiliation with, sponsorship by, or endorsement by the trademark owner.
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