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T24503

Sigma-Aldrich

Tetramethyl-Harnstoff

99%

Synonym(e):

1,1,3,3-Tetramethylharnstoff, TMU

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About This Item

Lineare Formel:
(CH3)2NCON(CH3)2
CAS-Nummer:
632-22-4
Molekulargewicht:
116.16
Beilstein:
773898
EG-Nummer:
211-173-9
MDL-Nummer:
MFCD00008319
UNSPSC-Code:
12352100
PubChem Substanz-ID:
24900039
NACRES:
NA.22

Assay

99%

Brechungsindex

n20/D 1.451 (lit.)

bp

177 °C (lit.)
62-63 °C/12 mmHg (lit.)

mp (Schmelzpunkt)

−1 °C (lit.)

Dichte

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

InChIKey

AVQQQNCBBIEMEU-UHFFFAOYSA-N

Angaben zum Gen

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

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Verwandte Kategorien

Anwendung

  • 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).

Signalwort

Danger

Gefahreneinstufungen

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

Lagerklassenschlüssel

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

WGK

WGK 3

Flammpunkt (°F)

167.0 °F - closed cup

Flammpunkt (°C)

75 °C - closed cup

Persönliche Schutzausrüstung

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

Hier finden Sie alle aktuellen Versionen:

Analysenzertifikate (COA)

Lot/Batch Number
WXBD5471V
WXBD4845V
WXBD3919V
BCCC9251
WXBD0989V

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1,3-Dimethyl-2-imidazolidinon absolute, over molecular sieve (H2O ≤0.04%), ≥99.5% (GC)

Sigma-Aldrich

40725

1,3-Dimethyl-2-imidazolidinon

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), 169-179 (2002-10-16)
Semi-solid viscoelastic matrices produced out of lysozyme in organic/aqueous media [tetramethylurea (TMU)/water] were characterized by small angle X-ray scattering (SAXS). The scattering curves were modeled in their form and interference factors. Radii of gyration of scattering particles were found to
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
Y L A Rezus et al.
The journal of physical chemistry. A, 112(11), 2355-2361 (2008-02-16)
We use mid-infrared pump-probe spectroscopy to study the ultrafast dynamics of HDO molecules in mixtures of tetramethylurea (TMU) and water. The composition of the studied solutions ranges from pure water to an equimolar mixture of water and TMU. We find
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
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