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349801

Sigma-Aldrich

1,3-Dimethyluracil

99%

Synonym(s):

1,3-Dimethyl-2,4(1H,3H)-pyrimidinedione, 2,4-Dihydroxy-1,3-dimethylpyrimidine

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About This Item

Empirical Formula (Hill Notation):
C6H8N2O2
CAS Number:
874-14-6
Molecular Weight:
140.14
Beilstein:
124074
EC Number:
212-856-4
MDL number:
MFCD00038065
UNSPSC Code:
12352100
PubChem Substance ID:
24861711
NACRES:
NA.22

Assay

99%

form

powder

mp

119-122 °C (lit.)

SMILES string

CN1C=CC(=O)N(C)C1=O

InChI

1S/C6H8N2O2/c1-7-4-3-5(9)8(2)6(7)10/h3-4H,1-2H3

InChI key

JSDBKAHWADVXFU-UHFFFAOYSA-N

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General description

1,3-Dimethyluracil is a pyrimidine derivative. Stability of the C6-centered carbanions derived from 1,3-dimethyluracil has been investigated in the gas phase and in DMSO and water solutions. The excited state structural dynamics of 1,3-dimethyluracil (DMU) in water and acetonitrile has been studied by resonance Raman spectroscopy. Crystal structure of 1,3-dimethyluracil has been reported. Ultraviolet irradiation of aqueous 1,3-dimethyluracil results in hydration of the 5:6 double bond of the uracil ring to form 1,3-dimethyl-6-oxy-hydrouracil.

Application

1,3-Dimethyluracil is suitable reagent used to investigate the steady-state absorption and fluorescence spectra of uracil derivatives. It may be used in the preparation of 2,6-dihydroxynicotinamide.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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Nicholas A Senger et al.
Tetrahedron, 69(26), 5287-5292 (2013-09-28)
The stabilities of the C6-centered carbanions derived from 1,3-dimethyluracil, N-methyl-2-pyridone, and N-methyl-4-pyridone were systematically investigated in the gas phase and in DMSO and water solutions. The stabilities of the carbanions in the gas phase and DMSO were directly measured through
Adam Gryff-Keller et al.
The journal of physical chemistry. A, 116(39), 9632-9638 (2012-09-14)
The practical utility of the method of retrieving the relaxation rate of a quadrupole nucleus via the scalar relaxation of the second kind (SC2) of an I = 1/2 spin nucleus has been considered once again. The study was motivated
Probing noncovalent interactions in biomolecular crystals with terahertz spectroscopy.
Thomas Kleine-Ostmann et al.
Chemphyschem : a European journal of chemical physics and physical chemistry, 9(4), 544-547 (2008-02-15)
J De Taeye et al.
Journal of pharmaceutical sciences, 74(6), 660-663 (1985-06-01)
The interaction between caffeine and hydroxylic derivatives (phenols, water) has been studied by infrared (IR) spectroscopy in 1,2-dichloroethane. The formation constants, enthalpies, and entropies of complex formation have been determined. The IR spectra in the vOH and vc=o ranges indicate
S Das et al.
International journal of radiation biology and related studies in physics, chemistry, and medicine, 46(1), 7-9 (1984-07-01)
The electron adducts of uracil, 1,3-dimethyluracil and 1,3-dimethylthymine, known to protonate rapidly in aqueous solution at oxygen, are now shown to undergo a slower protonation at C(6) producing a radical centred at C(5), a reaction which can be catalysed by
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