Merck
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33247

Sigma-Aldrich

Urea

puriss. p.a., ACS reagent, reag. Ph. Eur., ≥99%

Synonym(s):
Carbonyldiamide, Carbamide
Linear Formula:
NH2CONH2
CAS Number:
Molecular Weight:
60.06
Beilstein:
635724
Número EC:
Número MDL:
ID de substância PubChem:
NACRES:
NA.21

Nível de qualidade

200

grau

ACS reagent
puriss. p.a.

Agency

reag. Ph. Eur.

teor

≥99%
99-101% (calc. on dry substance)

forma

solid

Impurezas

alkalic reac. substances, complies
≤0.0005% heavy metals (as Pb)
≤0.05% ammonium (NH4)
≤0.1% biuret

resíduo de ignição

≤0.01% (as SO4)

perda

≤1.0% loss on drying, 105°C, 1 h

pf

132-135 °C (lit.)
132-135 °C

solubilidade

H2O: soluble 480 g/L at 20 °C

densidade

1.335 g/mL at 25 °C (lit.)

traços de ânion

chloride (Cl-): ≤5 mg/kg
sulfate (SO42-): ≤10 mg/kg

traços de cátion

Fe: ≤2 mg/kg

adequação

in accordance for appearance of solution
in accordance for identity

SMILES string

NC(N)=O

InChI

1S/CH4N2O/c2-1(3)4/h(H4,2,3,4)

InChI key

XSQUKJJJFZCRTK-UHFFFAOYSA-N

Gene Information

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Descrição geral

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.

Aplicação

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.
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.

Código de classe de armazenamento

11 - Combustible Solids

WGK

WGK 1

Ponto de fulgor (ºF)

Not applicable

Ponto de fulgor (ºC)

Not applicable

Equipamento de proteção individual

Eyeshields, Gloves, type N95 (US)

Certificate of Analysis

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Certificate of Origin

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