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Merck

U4884

Urea

meets USP testing specifications

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:
12352111
NACRES:
NA.75
PubChem Substance ID:
24900650
EC Number:
200-315-5
Beilstein/REAXYS Number:
635724
MDL number:
MFCD00008022
assay:
98.0-102.0%
application(s):
pharmaceutical (small molecule)

Product Name

Urea, meets USP testing specifications

InChI key

XSQUKJJJFZCRTK-UHFFFAOYSA-N

InChI

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

SMILES string

NC(N)=O

agency

USP/NF
meets USP testing specifications

assay

98.0-102.0%

form

solid

dilution

(for analytical testing)

mp

132-135 °C (lit.)

solubility

H2O: soluble 480 g/L at 20 °C

density

1.335 g/mL at 25 °C (lit.)

application(s)

pharmaceutical (small molecule)

Quality Level

200

Gene Information

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

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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.

Storage Class

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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Certificates of Analysis (COA)

Lot/Batch Number
0000495745
0000495744
0000495742
0000495742
0000495744

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L Li et al.
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A mechanically and electrically self-healing supercapacitor.
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Advanced materials (Deerfield Beach, Fla.), 26(22), 3638-3643 (2014-02-21)
Sreenivasa C Ramaiahgari et al.
Archives of toxicology, 88(5), 1083-1095 (2014-03-07)
Immortalized hepatocyte cell lines show only a weak resemblance to primary hepatocytes in terms of gene expression and function, limiting their value in predicting drug-induced liver injury (DILI). Furthermore, primary hepatocytes cultured on two-dimensional tissue culture plastic surfaces rapidly dedifferentiate
Marco Benevento et al.
Nature communications, 5, 5613-5613 (2014-12-11)
The ectopic expression of Oct4, Klf4, c-Myc and Sox2 (OKMS) transcription factors allows reprogramming of somatic cells into induced pluripotent stem cells (iPSCs). The reprogramming process, which involves a complex network of molecular events, is not yet fully characterized. Here
G L French et al.
Lancet (London, England), 2(8551), 117-119 (1987-07-18)
Tuberculostearic acid, a structural component of Mycobacterium tuberculosis, was identified by gas chromatography/mass spectrometry with selected ion monitoring in cerebrospinal fluid (CSF) from 13 patients with proven and 8 out of 9 patients with suspected tuberculous meningitis; the negative result
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