293768
1-Methyluracil
99%
Synonym(s):
1-Methyl-2,4(1H,3H)-pyrimidinedione
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About This Item
Empirical Formula (Hill Notation):
C5H6N2O2
CAS Number:
Molecular Weight:
126.11
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22
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![6-Methylthieno[2,3-d]pyrimidine-2,4(1H,3H)-dione](/deepweb/assets/sigmaaldrich/product/structures/393/943/c932f315-dd4b-4939-aea6-646238005e48/640/c932f315-dd4b-4939-aea6-646238005e48.png)
Quality Level
Assay
99%
mp
236-238 °C (lit.)
solubility
1 M NaOH: soluble 50 mg/mL, clear, colorless
SMILES string
CN1C=CC(=O)NC1=O
InChI
1S/C5H6N2O2/c1-7-3-2-4(8)6-5(7)9/h2-3H,1H3,(H,6,8,9)
InChI key
XBCXJKGHPABGSD-UHFFFAOYSA-N
General description
1-Methyluracil is of special importance in biochemistry, since uracil attaches ribose in ribonucleic acid (RNA) just precisely at the N1 atom. H-bond complex formation between 1-methyluracil and glycine has been investigated by theoretical calculations and FT-IR spectroscopy in Ar matrices. It forms 1:1 complexes with 9-ethyl-8-bromo-2,6-diaminopurine and the complex structure has been determined by three-dimensional X-ray diffraction methods.
Signal Word
Warning
Hazard Statements
Precautionary Statements
Hazard Classifications
Carc. 2
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
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V I Poltev et al.
Journal of biomolecular structure & dynamics, 9(1), 101-111 (1991-08-01)
A number of nucleic acid base pairs and complexes between the bases and the amide group of acrylamide have been studied experimentally by using mass spectrometry and theoretically by the method of atom-atom potential function calculations. It has been found
R K McMullan et al.
Acta crystallographica. Section B, Structural science, 45 ( Pt 3), 270-276 (1989-06-01)
The crystal structure of 1-methylpyrimidine-2,4-dione (1-methyluracil, C5H6N2O2) has been determined at 15, 60 and 123 K from neutron diffraction data. Molecules lie in the eightfold special positions (symmetry m) of space group Ibam, with a = 13.213 (2), b =
Base-pairing configurations between purines and pyrimidines in the solid state. V. Crystal and molecular structure of two 1:1 hydrogen-bonded complexes, 1-methyluracil: 9-ethyl-8-bromo-2,6-diaminopurine and 1-ethylthymine: 9-ethyl-8-bromo-2,6--diaminopurine.
G Simundza et al.
Journal of molecular biology, 48(2), 263-278 (1970-03-14)
V I Poltev et al.
Molekuliarnaia biologiia, 29(2), 365-375 (1995-03-01)
Monte Carlo simulation of hydration of keto and enol tautomers of 9-methylguanine (G) and 1-methyluracil (U) has been performed in relation to a possible role of tautomer transitions of DNA bases in mutagenesis. The comparison of the simulation results with
E Sagstuen et al.
Radiation research, 149(2), 120-127 (1998-02-11)
Single crystals of the co-crystalline complex of 1-methyluracil and 9-ethyladenine were X-irradiated and studied using EPR, ENDOR and FSE spectroscopic techniques at 10 K. All together seven radicals were identified, and experimental evidence for at least one more species, as
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