666122-M

Urea

Molecular Biology Grade, End product of the urea cycle. A topical keratolytic agent.

• Synonym(s): Urea, Carbamide, Carbonyl Diamide, Carbamide, Carbonyldiamide
• Linear Formula: NH₂CONH₂
• CAS Number: 57-13-6
• Molecular Weight: 60.06
• Beilstein: 635724
• MDL number: MFCD00008022
• UNSPSC Code: 12352111
• NACRES: NA.25
• Grade: Molecular Biology
• Assay: ≥98%

Properties

• grade: Molecular Biology
• Quality Level: 100
• description: Merck USA index - 14, 9867
• Assay: ≥98%
• form: solid
• manufacturer/tradename: Calbiochem^®
• storage condition: OK to freeze
• color: white
• mp: 132-135 °C (lit.)
• solubility: water: soluble
• density: 1.335 g/mL at 25 °C (lit.)
• absorption: ≤0.01 at 260 nm; ≤0.01 at 280 nm
• foreign activity: DNases, proteases, RNases, none detected
• storage temp.: 10-30°C
• SMILES string: NC(N)=O
• InChI: 1S/CH4N2O/c2-1(3)4/h(H4,2,3,4)
• InChI key: XSQUKJJJFZCRTK-UHFFFAOYSA-N

Description

General description

End product of the urea cycle (absorbance: ≤0.01 at 260 nm and 280 nm). A topical keratolytic agent.

End product of the urea cycle. A topical keratolytic agent.

Application

Used for the denaturation of proteins and as a mild solubilization agent for insoluble or denatured proteins. Useful for renaturing proteins from samples already denatured with 6 M guanidine chloride such as inclusion bodies. May be used with guanidine hydrochloride and dithiothreitrol (DTT) in the refolding of denatured proteins into their native or active form.

Warning

Toxicity: Irritant (B)

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

Safety Information

• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 1
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable