Imidazolidinyl Urea 98%min CAS 39236-46-9 is a widely-used formaldehyde‑releasing broad-spectrum preservative for cosmetic and personal‑care formulations. It inhibits bacteria, yeast and mold, offering good compatibility with most cosmetic raw materials. TNJ Chemical is a professional manufacturer and exporter since 2001. We guarantee high-quality products, competitive prices and thoughtful service. If you want to buy or have any other inquiries, please contact sales@tnjchem.com
Product Information
Product Name Imidazolidinyl Urea
CAS No. 39236-46-9
INCI Name Imidazolidinyl UreaEINECS No. 254-395-7
Molecular Formula C₁₁H₁₆N₈O₈
Molecular Weight 380.31
Appearance White free-flowing powder, almost odorless
Chemphysical Properties
Solubility Soluble in water; slightly soluble in glycerin; insoluble in oils
pH (1% aqueous solution) 6.0-7.5
Decomposition Temperature >150 °C
Effective pH Range 3.0-8.0
Storage Stability Stable under normal cosmetic processing conditions
Quality Specification
| Test Item | Specification |
|---|---|
| Assay | ≥98.0% |
| Loss on Drying | ≤3.0% |
| pH (1% solution) | 6.0‑7.5 |
| Heavy Metals (Pb) | ≤10 mg/kg |
| Arsenic (As) | ≤2 mg/kg |
Application & Use
Cosmetic & Personal Care: Broad-spectrum preservative for creams, lotions, shampoos, body washes and wet-wipes.
Effective against gram-positive / gram-negative bacteria, yeast and mold.
Formulation notes: Often combined with parabens for synergistic antimicrobial performance. Not recommended for leave-on products for sensitive-skin formulas at high dosage.
Packing, Delivery & Storage
Packing: 25 kg fiber drum with inner PE plastic bag; custom packing available.
Delivery: Samples available, bulk stock for fast shipment.
Storage: Keep tightly sealed, store in cool dry ventilated warehouse, avoid high temperature and moisture.
Shelf-life: 24 months under proper storage conditions.
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