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)
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
Certificates of Analysis (COA)
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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
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)
G L Bilich et al.
Haematologia, 15(1), 71-81 (1982-01-01)
Enzyme activities in the circulating lymphocytes permit to judge the character of the regenerative process in the lung, and the severity of the patient's condition; it helps in estimating the prognosis and in evaluating the efficacy of the applied therapy.
Assessment of hepatic tissue blood flow with 133Xe clearance technique.
N N Malinovsky et al.
International journal of nuclear medicine and biology, 8(1), 77-84 (1981-01-01)
Parthapratim Munshi et al.
Acta crystallographica. Section A, Foundations of crystallography, 64(Pt 4), 465-475 (2008-06-19)
Anisotropic displacement parameters (ADPs) are compared for H atoms estimated using three recently described procedures, both among themselves and with neutron diffraction results. The results convincingly demonstrate that all methods are capable of giving excellent results for several benchmark systems
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