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Merck

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:
57-13-6
Molecular Weight:
60.06
NACRES:
NA.21
PubChem Substance ID:
57648752
UNSPSC Code:
12352100
EC Number:
200-315-5
MDL number:
MFCD00008022
Beilstein/REAXYS Number:
635724

주요 문서

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제품 이름

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

InChI key

XSQUKJJJFZCRTK-UHFFFAOYSA-N

InChI

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

SMILES string

NC(N)=O

grade

ACS reagent
puriss. p.a.

agency

reag. Ph. Eur.

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 (lit.)
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

Quality Level

200

Gene Information

human ... CA1(759), CA2(760)
rat ... Ppm1a(24666)

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관련 카테고리

Application

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.

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.

저장 등급

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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시험 성적서(COA)

Lot/Batch Number
BCCN2961
SDBB2451
SDBB1243
SDBB0875
STBL4385

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The Fertilizer Encyclopedia, 709-709 (2009)
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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.
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Nanotechnology, 23(35), 355705-355705 (2012-08-17)
Graphene sheets decorated with SnO(2) nanoparticles (RGO-SnO(2)) were prepared via a redox reaction between graphene oxide (GO) and SnCl(2). Graphene oxide (GO) was reduced to graphene (RGO) and Sn(2+) was oxidized to SnO(2) during the redox reaction, leading to a
L Li et al.
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