Skip to Content
Merck
CN
All Photos(3)

Documents

U0631

Sigma-Aldrich

Urea

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

Synonym(s):

Carbamide, Carbonyldiamide

Sign Into View Organizational & Contract Pricing
All Photos(3)

About This Item

Linear Formula:
NH2CONH2
CAS Number:
57-13-6
Molecular Weight:
60.06
Beilstein:
635724
EC Number:
200-315-5
MDL number:
MFCD00008022
UNSPSC Code:
12352111
PubChem Substance ID:
24900617
NACRES:
NA.31

product line

BioXtra

Quality Level

200

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

SMILES string

NC(N)=O

InChI

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

InChI key

XSQUKJJJFZCRTK-UHFFFAOYSA-N

Gene Information

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

Looking for similar products? Visit Product Comparison Guide

Related Categories

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.

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

L Li et al.
Cell death and differentiation, 22(7), 1081-1093 (2014-12-20)
P53 is critically important in preventing oncogenesis but its role in inflammation in general and in the function of inflammatory macrophages in particular is not clear. Here, we show that bone marrow-derived macrophages exhibit endogenous p53 activity, which is increased
A mechanically and electrically self-healing supercapacitor.
Hua Wang et al.
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
Freimut Schliess et al.
Hepatology (Baltimore, Md.), 60(6), 2040-2051 (2014-03-29)
The impairment of hepatic metabolism due to liver injury has high systemic relevance. However, it is difficult to calculate the impairment of metabolic capacity from a specific pattern of liver damage with conventional techniques. We established an integrated metabolic spatial-temporal
Gurudayal et al.
Nano letters, 15(6), 3833-3839 (2015-05-06)
Photoelectrochemical water splitting half reactions on semiconducting photoelectrodes have received much attention but efficient overall water splitting driven by a single photoelectrode has remained elusive due to stringent electronic and thermodynamic property requirements. Utilizing a tandem configuration wherein the total
View All Related Papers

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service