Substance

ID:364994

Names and Identifiers
Synonyms
CarbamideCarbonyldiamideUrea碳酰胺尿素碳酰二胺
IUPAC name
urea
IUPAC Traditional name
urea
Registration numbers
Beilstein Number
CAS Number
MDL Number
EC Number
Properties
Product Information
Antion Traces
chloride (Cl-): ≤5 mg/kg
sulfate (SO42-): ≤10 mg/kg
Cation Traces
Cu: ≤5 mg/kg
Ca: ≤10 mg/kg
Mn: ≤5 mg/kg
Sr: ≤5 mg/kg
Al: ≤5 mg/kg
Ba: ≤5 mg/kg
Cr: ≤5 mg/kg
Fe: ≤5 mg/kg
Mg: ≤5 mg/kg
Ni: ≤5 mg/kg
Zn: ≤5 mg/kg
Cd: ≤5 mg/kg
Li: ≤5 mg/kg
Mo: ≤5 mg/kg
Na: ≤50 mg/kg
Pb: ≤5 mg/kg
Bi: ≤5 mg/kg
Co: ≤5 mg/kg
As: ≤0.1 mg/kg
K: ≤50 mg/kg
Purity
≥99.5% (T)
Impurities
proteases, none detected
RNases, none detected
<0.005% formaldehyde (HCHO)
phosphatases, none detected
≤0.05% biuret
DNases, none detected
insoluble matter, passes filter test
Loss on Drying
≤0.05% loss on drying, 20 °C (HV)
λ
8 M in H2O
Grade
for molecular biology
Linear Formula
NH2CONH2
Ignition Residue
≤0.01% (as SO4)
Product Line
BioUltra
Physical Property
Absorption Wavelength
λ: 280 nm Amax: ≤0.02
λ: 260 nm Amax: ≤0.03
Density
1.335 g/mL at 25 °C(lit.)
Solubility
H2O: soluble8 M at 20 °C, clear, colorless
Melting Point
132-135 °C(lit.)
pH
8.0-10.0 (25 °C, 8 M in H2O)
Safety Information
MSDS Link
German water hazard class
1
Personal Protective Equipment
Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter
RTECS
YR6250000
Molecule Details
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.
Urea can be used to study chaotropic agents, denaturation, biochemicals and reagents. Urea has been used to test whether the co-delivery of synergistic drug combinations in the same liposome provides a better anti-tumor effect than the drugs administered in separate liposomes.
Molecular Spectra
No Data Available
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References
No Data Available
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