CAS No. 39236-46-9

Batch: Purity:98
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Imidazolidinyl Urea Chemical Structure
Chemical Structure
Check the Imidazolidinyl Urea product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

CAS Number 39236-46-9
Molecular Formula

C11H16N8O8
Molecular Weight (MW) 388.29
SMILES C(NC(=O)NC1C(=O)NC(=O)N1CO)NC(=O)NC2C(=O)NC(=O)N2CO

Ordering Information

Biological Activity

Imidazolidinyl Urea is an antimicrobial preservative agent commonly used in personal care and cosmetic formulations. It acts primarily as a formaldehyde releaser, exerting broad-spectrum antimicrobial activity against Gram-positive and Gram-negative bacteria, as well as molds and yeasts. By releasing trace amounts of formaldehyde, it disrupts microbial cell membrane integrity, denatures essential proteins, and suppresses microbial reproduction, thereby preventing product contamination.

How to Prepare Stock Solution?

Concentration Volume Mass
1 mg 5 mg 10 mg
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Solubility

Batch:
All in vitro solubility values are batch-tested experimental data (non-literature values).
Solvent Solubility & Note
DMSO 77 mg/mL (198.3 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
FAQ
Q: Why does a DMSO stock precipitate in media/saline?
A: It is caused by unheated aqueous media (supersaturation), local solvent shock, or incorrect mixing sequence.
How to fix it?
  • Preheat media/saline to 37°C.
  • Mix rapidly (pipette/vortex) upon addition.
  • For complex mixes, always add the aqueous phase last.
  • Re-dissolve minor precipitates with a 37°C water bath and sonication (≤30 min).

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Note: Technical data last updated: Sep 1, 2026.