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T24503

Sigma-Aldrich

Tetramethylurea

99%

Sinonimo/i:

1,1,3,3-Tetramethylurea, TMU

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5 G
CHF 26.30
100 G
CHF 76.10

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5 G
CHF 26.30
100 G
CHF 76.10

About This Item

Formula condensata:
(CH3)2NCON(CH3)2
Numero CAS:
632-22-4
Peso molecolare:
116.16
Beilstein:
773898
Numero CE:
211-173-9
Numero MDL:
MFCD00008319
Codice UNSPSC:
12352100
ID PubChem:
24900039
NACRES:
NA.22

CHF 26.30

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Livello qualitativo

200

Saggio

99%

Indice di rifrazione

n20/D 1.451 (lit.)

P. ebollizione

177 °C (lit.)
62-63 °C/12 mmHg (lit.)

Punto di fusione

−1 °C (lit.)

Densità

0.968 g/mL at 20 °C (lit.)

Stringa SMILE

CN(C)C(=O)N(C)C

InChI

1S/C5H12N2O/c1-6(2)5(8)7(3)4/h1-4H3
AVQQQNCBBIEMEU-UHFFFAOYSA-N

Informazioni sul gene

human ... EPHX2(2053)
mouse ... Ephx2(13850)

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Categorie correlate

Applicazioni

  • Role of Tetramethylurea in Synthesizing Mesoporous Alumina: Tetramethylurea was used to synthesize mesoporous alumina via a hydrothermal method, affecting pore structure and thermal stability (Ghosh et al., 2014).

Avvertenze

Danger

Indicazioni di pericolo

H302,H315,H318,H360D

Classi di pericolo

Acute Tox. 4 Oral - Eye Dam. 1 - Repr. 1B - Skin Irrit. 2

Codice della classe di stoccaggio

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

167.0 °F - closed cup

Punto d’infiammabilità (°C)

75 °C - closed cup

Dispositivi di protezione individuale

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

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Certificati d'analisi (COA)

Lot/Batch Number
WXBF1291V
WXBF1591V
WXBD8401V
WXBD5471V
WXBD4845V

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Sigma-Aldrich

40725

1,3-dimetil-2-imidazolidinone

Klaas-Jan Tielrooij et al.
Journal of the American Chemical Society, 132(44), 15671-15678 (2010-10-19)
We study the influence of the amphipilic compound tetramethylurea (TMU) on the dynamical properties of water, using dielectric relaxation spectroscopy in the regime between 0.2 GHz and 2 THz. This technique is capable of resolving different water species, their relative
F A Sylvester et al.
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Piliated Burkholderia (formerly Pseudomonas) cepacia from sputa of cys tic fibrosis patients in Toronto, Canada, were shown earlier to bind to purified mucins and to a protein receptor on epithelial cells via a 22-kDa adhesin located on unique cable pili.
Y L A Rezus et al.
Physical review letters, 99(14), 148301-148301 (2007-10-13)
We have used femtosecond midinfrared spectroscopy to study the orientational mobility of water molecules in the hydration shells of hydrophobic groups. Our results show that hydrophobic groups are surrounded by a number of water molecules that display much slower orientational
Artem A Bakulin et al.
Accounts of chemical research, 42(9), 1229-1238 (2009-08-18)
For decades, the enigma of the hydrophobic force has captured the imagination of scientists. In particular, Frank and Evans' idea that the hydrophobic effect was mainly due to some kind of "iceberg" formation around a hydrophobic solute stimulated many experiments
Marcelo A da Silva et al.
Biophysical chemistry, 99(2), 129-141 (2002-10-16)
Rheological properties of lysozyme viscoelastic matrices resulting from a sol-gel transition taking place in organic/aqueous media at room temperature were investigated. Gel-like structures, of transparent appearance, developed out of lysozyme (5.0 mmol/dm(3)) dispersed in tetramethylurea (TMU)/water binary mixtures, at TMU
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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

      Helpful?

  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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