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293768

Sigma-Aldrich

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:
615-77-0
Molecular Weight:
126.11
MDL number:
MFCD00038666
UNSPSC Code:
12352100
PubChem Substance ID:
24857675
NACRES:
NA.22

Quality Level

200

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.

Pictograms

Health hazard
GHS08

Signal Word

Warning

Hazard Statements

H351

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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Certificates of Analysis (COA)

Lot/Batch Number
BCCH9221
BCBX5964
1437462V
1440743V
1437462

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Natalja Vogt et al.
The journal of physical chemistry. A, 117(44), 11374-11381 (2013-10-31)
As far as fundamental knowledge is concerned, the methyl derivatives of uracil can be considered as the simplest objects for studying the structural effects due to the substitution in the pyrimidyne nucleobases. From this point of view, 1-methyluracil is of
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
L F Sukhodub et al.
Biofizika, 34(2), 181-186 (1989-03-01)
The hydration of nucleotide bases of m9Ade(A), m1Ura(U) and a complementary pair A.U was studied by field ionization mass-spectrometry at room and low (170 K) temperatures in vacuum. Enthalpies of A.U-pair formation and its monohydrate A.U(H2O) were measured using temperature
Marek Boczar et al.
The Journal of chemical physics, 128(16), 164506-164506 (2008-05-02)
Theoretical simulation of the band shape and fine structure of the N-H(D) stretching band is presented for 1-methyluracil and its deuterated derivative taking into account anharmonic coupling between the high-frequency N-H(D) stretching and the low-frequency N...O stretching vibrations, resonance interaction
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 =
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