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15604

Urea

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

Synonym(s):

Carbamide, Carbonyldiamide

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About This Item

Linear Formula:
NH2CONH2
CAS Number:
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
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grade

puriss.

Quality Level

200

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

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

SMILES string

NC(N)=O

InChI

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

InChI key

XSQUKJJJFZCRTK-UHFFFAOYSA-N

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.

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Storage Class

11 - Combustible Solids

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Certificates of Analysis (COA)

Lot/Batch Number
STBK6668
STBK6227
STBK5678
STBK4784
STBK3285

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Braun D, et al. et al.
Polymer Synthesis: Theory and Practice: Fundamentals, Methods, Experiments ; with 31 Tables (2001)
Nova I and Tronconi E et al.
Urea-SCR Technology for deNOx after treatment of Diesel Exhausts (2014)
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
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Global Trade Item Number

SKUGTIN
15604-1KG04061838742407
15604-250G04061838742421
15604-50KG04061838742438
15604-2.5KG04061838742414
15604-25KG04061832747460
15604-6X2.5KG04061832747484