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51457

Sigma-Aldrich

Urea solution

BioUltra, ~8 M in H2O

Synonyme(s) :

Carbamide, Carbonyldiamide

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Disponible pour expédition le11 avril 2025Détails

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100 ML
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500 ML
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About This Item

Formule linéaire :
NH2CONH2
Numéro CAS:
57-13-6
Poids moléculaire :
60.06
Beilstein:
635724
Numéro MDL:
MFCD00008022
Code UNSPSC :
12352111
ID de substance PubChem :
57651308
Nomenclature NACRES :
NA.25

101,00 $

Disponible pour expédition le11 avril 2025Détails

Devis pour commande en gros

Gamme de produits

BioUltra

Concentration

~8 M in H2O

Impuretés

insoluble matter, passes filter test
≤0.005% formaldehyde (HCHO)
≤0.05% biuret

Indice de réfraction

n20/D 1.40

pH

8.0-10.0 (25 °C)

Traces d'anions

chloride (Cl-): ≤5 mg/kg
sulfate (SO42-): ≤10 mg/kg

Traces de cations

Al: ≤1 mg/kg
As: ≤0.1 mg/kg
Ba: ≤1 mg/kg
Bi: ≤1 mg/kg
Ca: ≤5 mg/kg
Cd: ≤1 mg/kg
Co: ≤1 mg/kg
Cr: ≤1 mg/kg
Cu: ≤1 mg/kg
Fe: ≤1 mg/kg
K: ≤20 mg/kg
Li: ≤1 mg/kg
Mg: ≤1 mg/kg
Mn: ≤1 mg/kg
Mo: ≤1 mg/kg
Na: ≤20 mg/kg
Ni: ≤1 mg/kg
Pb: ≤1 mg/kg
Sr: ≤1 mg/kg
Zn: ≤1 mg/kg

λ

neat

Absorption UV

λ: 260 nm Amax: 0.03
λ: 280 nm Amax: 0.02

Chaîne SMILES 

NC(N)=O

InChI

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

Clé InChI

XSQUKJJJFZCRTK-UHFFFAOYSA-N

Informations sur le gène

human ... CA1(759) , CA2(760) , EPHX2(2053)
mouse ... Ephx2(13850)
rat ... Ppm1a(24666)

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Catégories apparentées

Application

Urea solution has been used as a urea buffer for the denaturation of heavy chain and β2m inclusion body preparations.[1] It has also been used as a component of 1x wash buffer to purify HIS-tagged microphthalmia-associated transcription factor (MITF).[2]

Code de la classe de stockage

10 - Combustible liquids

Classe de danger pour l'eau (WGK)

WGK 1

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

Eyeshields, Gloves

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Certificats d'analyse (COA)

Lot/Batch Number
BCCM8020
BCCL9779
BCCL6944
BCCK9869
BCCJ7015

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Retrouvez la documentation relative aux produits que vous avez récemment achetés dans la Bibliothèque de documents.

Consulter la Bibliothèque de documents

Takuya Sekine et al.
Cell, 183(1), 158-168 (2020-09-28)
SARS-CoV-2-specific memory T cells will likely prove critical for long-term immune protection against COVID-19. Here, we systematically mapped the functional and phenotypic landscape of SARS-CoV-2-specific T cell responses in unexposed individuals, exposed family members, and individuals with acute or convalescent COVID-19. Acute-phase
Pakavarin Louphrasitthiphol et al.
Molecular cell, 79(3), 472-487 (2020-06-13)
It is widely assumed that decreasing transcription factor DNA-binding affinity reduces transcription initiation by diminishing occupancy of sequence-specific regulatory elements. However, in vivo transcription factors find their binding sites while confronted with a large excess of low-affinity degenerate motifs. Here, using
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
G L French et al.
Lancet (London, England), 2(8551), 117-119 (1987-07-18)
Tuberculostearic acid, a structural component of Mycobacterium tuberculosis, was identified by gas chromatography/mass spectrometry with selected ion monitoring in cerebrospinal fluid (CSF) from 13 patients with proven and 8 out of 9 patients with suspected tuberculous meningitis; the negative result
Afficher tous les articles scientifiques apparentés

Questions

1–2 of 2 Questions  

  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/449/386/product-dating-information-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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