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T24503

Sigma-Aldrich

Tetramethylurea

99%

Synonym(s):

1,1,3,3-Tetramethylurea, TMU

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5 G
$29.90
100 G
$113.00

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Available to ship onApril 15, 2025Details

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5 G
$29.90
100 G
$113.00

About This Item

Linear Formula:
(CH3)2NCON(CH3)2
CAS Number:
632-22-4
Molecular Weight:
116.16
Beilstein/REAXYS Number:
773898
EC Number:
211-173-9
MDL number:
MFCD00008319
UNSPSC Code:
12352100
PubChem Substance ID:
24900039
NACRES:
NA.22

$29.90

Available to ship onApril 15, 2025Details

Request a Bulk Order

Quality Level

200

assay

99%

refractive index

n20/D 1.451 (lit.)

bp

177 °C (lit.)
62-63 °C/12 mmHg (lit.)

mp

−1 °C (lit.)

density

0.968 g/mL at 20 °C (lit.)

SMILES string

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

InChI

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

InChI key

AVQQQNCBBIEMEU-UHFFFAOYSA-N

Gene Information

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

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Related Categories

Application

  • 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).

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Danger

Hazard Classifications

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

Storage Class

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

wgk_germany

WGK 3

flash_point_f

167.0 °F - closed cup

flash_point_c

75 °C - closed cup

ppe

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

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Certificates of Analysis (COA)

Lot/Batch Number
WXBF1291V
WXBF1591V
WXBD8401V
WXBD5471V
WXBD4845V

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Sigma-Aldrich

40725

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F A Sylvester et al.
Infection and immunity, 64(4), 1420-1425 (1996-04-01)
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
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
Marcelo A da Silva et al.
Journal of colloid and interface science, 289(2), 394-401 (2005-06-07)
In this work, the gelation kinetics and fractal character of lysozyme gel matrices developed in tetramethylurea (TMU)-water media were investigated. Gelation times were determined from the temporal crossover point between the storage, G', and loss, G'', moduli, as a function
Haiyan Wei et al.
The journal of physical chemistry. B, 114(1), 557-568 (2009-11-26)
The effects of urea, tetramethyl urea (TMU), and trimethylamine N-oxide (TMAO) on the structure and dynamics of aqueous solutions are studied using molecular dynamics simulations. It was found that urea has little effects on the water-water hydrogen-bond length and angle
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Questions

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  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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