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U4883

Supelco

Urea

8 M (after reconstitution with 16 mL high purity water)

Synonym(s):

Urea solution, 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:
24900649
NACRES:
NA.25
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form

powder

Quality Level

100

concentration

8 M (after reconstitution with 16 mL high purity water)

solubility

H2O: soluble (1 vial plus 16 mL)

SMILES string

NC(N)=O

InChI

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

InChI key

XSQUKJJJFZCRTK-UHFFFAOYSA-N

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General description

Urea is a chaotropic agent and is used for protein denaturation. It disturbs the hydrogen bonds in the secondary, tertiary and quaternary structure of proteins. It can also disturb hydrogen bonding present in DNA secondary structure.[1]

Application

Useful for solubilizing and denaturing proteins in preparation for 2D-PAGE, enzymatic digests, IMAC Chromatography, and related procedures.
Urea has been used for protein sample preparation for reverse-phase nanospray liquid chromatography-tandem mass spectrometry.[2]

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
0000381842
0000381842
0000386643
0000388474
0000360478

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Sheehan D
Physical Biochemistry: Principles and Applications (2009)
MPYS, a novel membrane tetraspanner, is associated with major histocompatibility complex class II and mediates transduction of apoptotic signals.
Jin L, et al.
Molecular and Cellular Biology, 28, 5014-5026 (2008)
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
Florin Sasarman et al.
Human molecular genetics, 24(10), 2841-2847 (2015-02-06)
Addition of the trinucleotide cytosine/cytosine/adenine (CCA) to the 3' end of transfer RNAs (tRNAs) is essential for translation and is catalyzed by the enzyme TRNT1 (tRNA nucleotidyl transferase), which functions in both the cytoplasm and mitochondria. Exome sequencing revealed TRNT1
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
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Questions

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  1. 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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  2. 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/449/386/product-dating-information-mk.pdf

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