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Merck
CN

STA003K

Tetramethylurea

certified reference material

Synonym(s):

1,1,3,3-Tetramethylurea, TMU

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About This Item

Linear Formula:
(CH3)2NCON(CH3)2
CAS Number:
632-22-4
Molecular Weight:
116.16
Beilstein/REAXYS Number:
773898
MDL number:
MFCD00008319

Key Documents

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grade

certified reference material

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.)

application(s)

agriculture
food and beverages

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

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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
A J O'Neill et al.
Drug and chemical toxicology, 24(4), 301-314 (2001-10-23)
Tetramethylurea (TMU, CAS No. 632-22-4) was tested for its inhalation toxicity in rats following repeated exposures. Male rats were exposed whole-body to TMU for 6 hours/day, 5 days/week for a total of 9 exposures over 2 weeks. Concentrations of 0
Olivier Bréas et al.
Rapid communications in mass spectrometry : RCM, 21(10), 1555-1560 (2007-04-13)
Tetramethylurea (TMU) with a certified D/H ratio is the internal standard for Site-specific Natural Isotope Fractionation measured by Nuclear Magnetic Resonance (SNIF-NMR) analysis of wine ethanol for detection of possible adulterations (Commission Regulation 2676/90). A new batch of a TMU
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