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U5378

Urea

powder, BioReagent, Molecular Biology, suitable for cell culture

Urea

Synonym(s):

Carbamide, Carbonyldiamide

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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:
24900656
NACRES:
NA.31
Grade:
Molecular Biology
Assay:
≥98%
Technique(s):
cell culture | mammalian: suitable

Key Documents

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grade

Molecular Biology

Quality Level

200

product line

BioReagent

Assay

≥98%

form

powder

technique(s)

cell culture | mammalian: suitable

mp

132-135 °C (lit.)

solubility

H2O: soluble 480 mg/mL, clear, colorless (8M)

density

1.335 g/mL at 25 °C (lit.)

anion traces

chloride (Cl-): ≤5 ppm

cation traces

Cu: ≤1 ppm
Fe: ≤5 ppm
Pb: ≤2 ppm

absorption

≤0.06 at 260 at 6 M
≤0.06 at 280 at 6 M

foreign activity

DNase, NICKase, RNase and protease, none detected

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)

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This Item
33247156041.04166
Urea powder, BioReagent, Molecular Biology, suitable for cell culture

Sigma-Aldrich

U5378

Urea

Urea puriss. p.a., ACS reagent, reag. Ph. Eur., ≥99%

Sigma-Aldrich

33247

Urea

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

Sigma-Aldrich

15604

Urea

Urea granulated, EMPROVE® EXPERT, Ph. Eur., BP, ChP, JP, USP, ACS

SAFC

1.04166

Urea

technique(s)

cell culture | mammalian: suitable

technique(s)

-

technique(s)

-

technique(s)

-

assay

≥98%

assay

≥99%, 99-101% (calc. on dry substance)

assay

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

assay

-

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

500

grade

for molecular biology

grade

ACS reagent, puriss. p.a.

grade

-

grade

ACS reagent

solubility

H2O: soluble 480 mg/mL, clear, colorless (8M)

solubility

H2O: soluble 480 g/L at 20 °C

solubility

H2O: soluble 480 g/L at 20 °C

solubility

-

form

powder

form

solid

form

solid

form

granular

Application

  • Urea has been used in protein resuspension buffer and to denature proteins.[1]
  • It has been used for the isolation of proteins via urea-containing polyacrylamide gels.[2]
  • It has been used to study the conformation of unfolded proteins under different concentrations of urea and different pH.[3]
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 Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
0000464164
BCCN1361
WXBF5575V
0000414069
0000414069

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Labeling and identification of direct kinase substrates.
Carlson SM and White FM
Science Signaling, 5, pl3-pl3 (2012)
Construction and transfection of a ribozyme targeting human caspase-3.
Cronin D et al.
Anticancer Research, 24, 425-425 (2004)
Structure and properties of native and unfolded lysing enzyme from T. harzianum: Chemical and pH denaturation.
Bey H et al.
International Journal of Biological Macromolecules, 92, 860-860 (2016)
Ziyi Yin et al.
Autophagy, 15(7), 1234-1257 (2019-02-20)
Macroautophagy/autophagy is critical for normal appressorium formation and pathogenicity of the rice blast fungus Magnaporthe oryzae, but the molecular base of autophagy linked to pathogenicity remains elusive in this or other pathogenic fungi. We found that MoHat1, a histone acetyltransferase
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

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Product Information Sheet - U5378

Product Information Sheet

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Questions

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  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  3. what is storage temperature for U5378?

    1 answer

    1. This product may be stored at room temperature. For products with no specified storage temperature given on the label or product page, ambient storage may be assumed.

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