CAS No. 57-13-6

Batch: Purity:98.63
Urea Chemical Structure
Chemical Structure
Check the Urea product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

CAS Number 57-13-6
Molecular Formula

CH4N2O

Molecular Weight (MW) 60.06

Ordering Information

Biological Activity

Urea is a naturally occurring organic metabolite that functions as a protein denaturant and osmotic agent. It disrupts hydrophobic interactions and hydrogen bonding networks within proteins, leading to protein conformational unfolding and denaturation. In biological systems, urea regulates intracellular osmotic balance and facilitates nitrogen excretion across cellular membranes via specialized urea transporter pathways. [1]

How to Prepare Stock Solution?

Concentration Volume Mass
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Solubility

Batch:
All in vitro solubility values are batch-tested experimental data (non-literature values).
Solvent Solubility & Note
DMSO 12 mg/mL (199.8 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Water 12 mg/mL
Ethanol 12 mg/mL
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).
Note: Technical data last updated: Sep 1, 2026.