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Merck

15604

Urea

puriss., meets analytical specification of Ph. Eur., BP, USP, 99.0-100.5%, 99.0-101.0% (calc. on dry substance)

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
UNSPSC Code:
12352100
NACRES:
NA.21
PubChem Substance ID:
329750941
EC Number:
200-315-5
Beilstein/REAXYS Number:
635724
MDL number:
MFCD00008022
Assay:
99.0-100.5%, 99.0-101.0% (calc. on dry substance)
Form:
solid

주요 문서

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InChI key

XSQUKJJJFZCRTK-UHFFFAOYSA-N

InChI

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

SMILES string

NC(N)=O

grade

puriss.

assay

99.0-100.5%, 99.0-101.0% (calc. on dry substance)

form

solid

quality

meets analytical specification of Ph. Eur., BP, USP

impurities

alkalic reac. substances, complies, ≤0.001% heavy metals (as Pb), ≤0.04% insoluble in ethanol, ≤0.05% ammonium (NH4), ≤0.1% biuret(carbamylurea)

ign. residue

≤0.1% (as SO4)

loss

≤1.0% loss on drying, 105 °C, 1 h

Quality Level

200

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-): ≤10 mg/kg, sulfate (SO42-): ≤50 mg/kg

cation traces

Fe: ≤0.5 mg/kg

suitability

in accordance for appearance of solution, in accordance for identity

functional group

amine

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관련 카테고리

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 can be prepared from ammonia and carbon-dioxide, via Haber-Bosch process. It can also be used to prepare urea-formaldehyde resins, via condensation reaction.

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.

저장 등급

11 - Combustible Solids

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
BCCP0074
BCCP0075
BCCN7942
BCCN1200
BCCN0756

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문서 라이브러리 방문

Nova I and Tronconi E et al.
Urea-SCR Technology for deNOx after treatment of Diesel Exhausts (2014)
Braun D, et al. et al.
Polymer Synthesis: Theory and Practice: Fundamentals, Methods, Experiments ; with 31 Tables (2001)
Eagleson M.
Concise Encyclopedia Chemistry, 1137-1137 (1994)
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
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