33247
Urea
ACS reagent grade, ≥99%, solid, puriss. p.a., reag. Ph. Eur.
동의어(들):
Carbamide, Carbonyldiamide
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제품정보 (DICE 배송 시 비용 별도)
Linear Formula:
NH2CONH2
CAS 번호:
Molecular Weight:
60.06
NACRES:
NA.21
PubChem Substance ID:
UNSPSC Code:
12352100
EC Number:
200-315-5
MDL number:
Beilstein/REAXYS Number:
635724
Assay:
≥99%, 99-101% (calc. on dry substance)
Form:
solid
제품 이름
Urea, puriss. p.a., ACS reagent, reag. Ph. Eur., ≥99%
Quality Level
agency
reag. Ph. Eur.
grade
ACS reagent, puriss. p.a.
assay
≥99%, 99-101% (calc. on dry substance)
form
solid
impurities
alkalic reac. substances, complies, ≤0.0005% heavy metals (as Pb), ≤0.05% ammonium (NH4), ≤0.1% biuret
ign. residue
≤0.01% (as SO4)
loss
≤1.0% loss on drying, 105°C, 1 h
mp
132-135 °C
solubility
H2O: soluble 480 g/L at 20 °C
density
1.335 g/mL at 25 °C (lit.)
anion traces
chloride (Cl-): ≤5 mg/kg, sulfate (SO42-): ≤10 mg/kg
cation traces
Fe: ≤2 mg/kg
suitability
in accordance for appearance of solution, in accordance for identity
functional group
amine
SMILES string
NC(N)=O
InChI
1S/CH4N2O/c2-1(3)4/h(H4,2,3,4)
InChI key
XSQUKJJJFZCRTK-UHFFFAOYSA-N
Gene Information
human ... CA1(759), CA2(760)
rat ... Ppm1a(24666)
General description
Urea is a colorless, odorless solid. It has prism-like crystals. It forms insoluble nitrate salts with nitric acid and oxalate salts with oxalic acid. On reaction with alkanes or substituted alkanes, it affords crystal-lattice inclusion compounds.
Urea is the most commonly used slow release nitrogen fertilizer.
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 has been used in the following studies:
- Synthesis of SnO2 nanoparticles.
- Synthesis of urethanes, ureides and semicarbazides.
- Denaturation of protein isolated from Saccharomyces cerevisiae Y15696 strain.
- Protein electrophoretic studies.
저장 등급
11 - Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
The Fertilizer Encyclopedia, 709-709 (2009)
Genna L Andrews et al.
Analytical chemistry, 83(13), 5442-5446 (2011-05-31)
The TripleTOF 5600 System, a hybrid quadrupole time-of-flight mass spectrometer, was evaluated to explore the key figures of merit in generating peptide and protein identifications that included spectral acquisition rates, data quality, proteome coverage, and biological depth. Employing a Saccharomyces
Joost P J J Hegmans et al.
The American journal of pathology, 164(5), 1807-1815 (2004-04-28)
Exosomes are small membrane vesicles secreted into the extracellular compartment by exocytosis. Tumor exosomes may be involved in the sampling of antigens to antigen presenting cells or as decoys allowing the tumor to escape immune-directed destruction. The proteins present in