Passa al contenuto
Merck
Tutte le immagini(2)

Documenti fondamentali

U1250

Sigma-Aldrich

Urea

ReagentPlus®, ≥99.5%, pellets

Sinonimo/i:

Carbamide, Carbonildiamide

Autenticatiper visualizzare i prezzi riservati alla tua organizzazione & contrattuali

Scegli un formato

1 KG
48,60 €
5 KG
189,00 €

48,60 €


Disponibile per la spedizione il31 marzo 2025Dettagli


Richiedi un ordine bulk

Scegli un formato

Cambia visualizzazione
1 KG
48,60 €
5 KG
189,00 €

About This Item

Formula condensata:
NH2CONH2
Numero CAS:
Peso molecolare:
60.06
Beilstein:
635724
Numero CE:
Numero MDL:
Codice UNSPSC:
12352100
ID PubChem:
NACRES:
NA.21

48,60 €


Disponibile per la spedizione il31 marzo 2025Dettagli


Richiedi un ordine bulk

Livello qualitativo

Nome Commerciale

ReagentPlus®

Saggio

≥99.5%

Stato

pellets

Punto di fusione

132-135 °C (lit.)

Solubilità

H2O: 8 M

Densità

1.335 g/mL at 25 °C (lit.)

Gruppo funzionale

amine

Stringa SMILE

NC(N)=O

InChI

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

Informazioni sul gene

Cerchi prodotti simili? Visita Guida al confronto tra prodotti

Descrizione generale

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]

Applicazioni

Usata per la denaturazione di proteine e come blando agente di solubilizzazione per proteine insolubili o denaturate. Utilizzata per rinaturare proteine da campioni già denaturati con cloruro di guanidinio 6 M come corpi di inclusione. Può essere impiegata con idrocloruro di guanidina e ditiotreitolo (DTT) nella ripiegatura di proteine denaturate nella loro forma nativa o attiva.
Urea has been used as a protein denaturing agent.[2][3]

Note legali

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

Codice della classe di stoccaggio

11 - Combustible Solids

Classe di pericolosità dell'acqua (WGK)

WGK 1

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

Dispositivi di protezione individuale

Eyeshields, Gloves, type N95 (US)


Scegli una delle versioni più recenti:

Certificati d'analisi (COA)

Lot/Batch Number

Non trovi la versione di tuo interesse?

Se hai bisogno di una versione specifica, puoi cercare il certificato tramite il numero di lotto.

Possiedi già questo prodotto?

I documenti relativi ai prodotti acquistati recentemente sono disponibili nell’Archivio dei documenti.

Visita l’Archivio dei documenti

I clienti hanno visto anche

Slide 1 of 4

1 of 4

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

Supelco

U4883

Urea

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

Sigma-Aldrich

U0631

Urea

Urea for biochemistry

Millipore

1.08488

Urea

Urea crystalline, EMPROVE® ESSENTIAL, Ph. Eur., BP, ChP, JP, USP

SAFC

1.08486

Urea

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)
Protein carbonyl determination by a rhodamine B hydrazide-based fluorometric assay.
Georgiou C D, et al.
Redox Biology, 17, 236-245 (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
Christos D Georgiou et al.
Redox biology, 17, 236-245 (2018-05-05)
A new fluorometric assay is presented for the ultrasensitive quantification of total protein carbonyls, and is based on their specific reaction with rhodamine B hydrazide (RBH), and the production of a protein carbonyl-RBH hydrazone the fluorescence of which (at ex/em

Protocolli

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

Domande

1–2 di 2 domande  
  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 risposta
    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

      Utile?

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

    1 risposta
    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

      Utile?

Recensioni

Nessuna valutazione

Filtri attivi

Il team dei nostri ricercatori vanta grande esperienza in tutte le aree della ricerca quali Life Science, scienza dei materiali, sintesi chimica, cromatografia, discipline analitiche, ecc..

Contatta l'Assistenza Tecnica.