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U1250

Sigma-Aldrich

Urea

ReagentPlus®, ≥99.5%, pellets

Sinónimos:

Carbamida, Carbonildiamida

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1 KG
$62.37
5 KG
$156.60

$62.37

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1 KG
$62.37
5 KG
$156.60

About This Item

Fórmula lineal:
NH2CONH2
Número de CAS:
57-13-6
Peso molecular:
60.06
Beilstein:
635724
Número CE:
200-315-5
Número MDL:
MFCD00008022
Código UNSPSC:
12352100
ID de la sustancia en PubChem:
57654718
NACRES:
NA.21

$62.37

Precio de catálogo$69.30Ahorre 10 %
Web-Only Promotion

Disponible para envío el07 de abril de 2025Detalles

Solicitar un pedido a granel

Nivel de calidad

300

Línea del producto

ReagentPlus®

Ensayo

≥99.5%

Formulario

pellets

mp

132-135 °C (lit.)

solubilidad

H2O: 8 M

densidad

1.335 g/mL at 25 °C (lit.)

grupo funcional

amine

cadena SMILES

NC(N)=O

InChI

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

Clave InChI

XSQUKJJJFZCRTK-UHFFFAOYSA-N

Información sobre el gen

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

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Categorías relacionadas

Descripción general

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. Urea can also disturb hydrogen bonds present in DNA secondary structure.[1]

Aplicación

Utilizada para la desnaturalización de proteínas y como suave agente de solubilización para las proteínas insolubles o desnaturalizadas. Útil para la renaturalización de proteínas de muestras ya desnaturalizadas con cloruro de guanidina 6 M como los cuerpos de inclusión. Puede utilizarse con clorhidrato de guanidina y ditiotreitol (DTT) en el repliegue de las proteínas desnaturalizadas a su forma nativa o activa.
Urea has been used as a protein denaturing agent.[2][3]

Información legal

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany

Código de clase de almacenamiento

11 - Combustible Solids

Clase de riesgo para el agua (WGK)

WGK 1

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable

Equipo de protección personal

Eyeshields, Gloves, type N95 (US)

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Certificados de análisis (COA)

Lot/Batch Number
0000418590
0000418590
0000418589
0000418589
0000418591

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Urea

Protein carbonyl determination by a rhodamine B hydrazide-based fluorometric assay.
Georgiou C D, et al.
Redox Biology, 17, 236-245 (2018)
Sheehan D.
Physical Biochemistry: Principles and Applications (2013)
Protein and cell wall polysaccharide carbonyl determination by a neutral pH 2, 4-dinitrophenylhydrazine-based photometric assay.
Georgiou C D, et al.
Redox Biology, 17, 128-142 (2018)
Christos D Georgiou et al.
Redox biology, 17, 128-142 (2018-04-24)
A new 2,4-dinitrophenylhydrazine (DNPH)-based photometric assay is developed for the quantification of carbonyls in protein samples from any biological source by protein carbonyl-DNPH hydrazone formation at acidic pH in the presence of denaturing urea, and subsequent hydrazone solubilization in the
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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Protocolos

Proteinase K Enzymatic Assay

Proteinase K activity measured via spectrophotometry using hemoglobin substrate, crucial for enzyme characterization.

Questions

1–2 of 2 Questions  

  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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