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Merck

U0631

Urea

BioXtra, pH 7.5-9.5 (20 °C, 5 M in H2O)

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.31
PubChem Substance ID:
24900617
EC Number:
200-315-5
Beilstein/REAXYS Number:
635724
MDL number:
MFCD00008022
assay:
98.5-101.5%
application(s):
diagnostic assay manufacturing

Product Name

Urea, BioXtra, pH 7.5-9.5 (20 °C, 5 M in H2O)

InChI key

XSQUKJJJFZCRTK-UHFFFAOYSA-N

InChI

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

SMILES string

NC(N)=O

product line

BioXtra

assay

98.5-101.5%

form

powder, crystals or pellets

impurities

≤0.005% Phosphorus (P)
≤0.1% Insoluble matter

ign. residue

≤0.1%

pH

7.5-9.5 (20 °C, 5 M in H2O)

mp

132-135 °C (lit.)

solubility

H2O: 5 M at 20 °C, clear, colorless

density

1.335 g/mL at 25 °C (lit.)

anion traces

chloride (Cl-): ≤0.05%
sulfate (SO42-): ≤0.05%

cation traces

Al: ≤0.0005%
Ca: ≤0.001%
Cu: ≤0.0005%
Fe: ≤0.0005%
K: ≤0.005%
Mg: ≤0.0005%
NH4+: ≤0.05%
Na: ≤0.005%
Pb: ≤0.001%
Zn: ≤0.0005%

absorption

≤0.06 at 260 nm at 5 M
≤0.06 at 280 nm at 5 M

application(s)

diagnostic assay manufacturing

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
BCCM8524
BCCM8004
BCCK8961
BCCJ7266
BCCJ9916

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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
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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
Annette Bahlinger et al.
Angewandte Chemie (International ed. in English), 53(33), 8779-8783 (2014-03-20)
β-Amino thioesters are important natural building blocks for the synthesis of numerous bioactive molecules. An organocatalyzed Mannich reaction was developed which provides direct and highly stereoselective access to acyclic β(2)- and β(2,3,3)-amino thioesters with adjacent tertiary and quaternary stereocenters. Mechanistic
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Product Information Sheet - U0631

Product Information Sheet

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