Imidazolidinyl Urea CAS 39236-46-9 Bulk Supplier | High-Purity Cosmetic Preservative

Imidazolidinyl Urea (CAS 39236-46-9) is a widely used cosmetic preservative supplied as a fine white powder with controlled nitrogen content and defined physicochemical specifications. With a molecular formula of C₁₁H₁₆N₈O₈ and molecular weight 388.29 g/mol, it is selected by cosmetic and personal care manufacturers seeking reliable antimicrobial protection and consistent batch performance.

Product Description

Imidazolidinyl Urea is a well-established preservative ingredient used in a broad range of rinse-off and leave-on cosmetic formulations. It is valued for its compatibility with aqueous systems and its ability to integrate smoothly into emulsions, creams, gels, and lotions without significantly altering product texture or appearance.

Manufactured under controlled quality standards, this material is supplied as a fine white powder with tightly defined nitrogen content (26.0–28.0%), low loss on drying, and controlled sulfated ash levels. Its neutral to slightly acidic pH range makes it compatible with common cosmetic formulation environments.

The product demonstrates clean analytical performance, including IR identification conformity, defined clarity when dissolved in water, and heavy metal limits verified by ICP-MS.

Technical Properties

• Catalog Number: NST-10-255
• CAS Number: 39236-46-9
• Molecular Formula: C₁₁H₁₆N₈O₈
• Molecular Weight: 388.29 g/mol
• Appearance: Fine powder
• Color: White
• Odor: None or characteristically mild
• Identification: Conforms (IR)
• Nitrogen Content: 26.0–28.0%
• Sulfated Ash: ≤ 3.0%
• Loss on Drying: ≤ 3.0%
• pH (aqueous solution): 6.0–7.5
• Heavy Metals: ≤ 10 ppm (ICP-MS)

Applications & Industries

Imidazolidinyl Urea bulk material is primarily used in cosmetic and personal care manufacturing:

• Cosmetics & Personal Care: Incorporated into creams, lotions, shampoos, conditioners, liquid soaps, and other water-based systems to help maintain microbiological stability.
• Dermocosmetic Formulations: Used in professional skincare products where preservative reliability and controlled impurity profiles are essential.
• Contract Manufacturing: Suitable for large-scale cosmetic production requiring reproducible quality and defined analytical parameters.
• Private Label & OEM Production: Selected by manufacturers seeking dependable preservative systems with documented specifications.

Key Advantages

Well-defined nitrogen specification: 26.0–28.0% nitrogen content ensures consistent preservative composition and performance.

Controlled impurity profile: Low sulfated ash, low moisture, and ICP-MS verified heavy metal limits support quality assurance requirements.

Formulation compatibility: Neutral pH range and water solubility allow seamless integration into aqueous and emulsion systems.

Fine, free-flowing powder: Enables accurate dosing, efficient blending, and uniform dispersion during production.

B2B-ready documentation: Supplied with COA and full quality specification to support regulatory review and manufacturing audits.

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