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199885

Sigma-Aldrich

4(5)-Methylimidazole

98%

Synonym(s):

1H-4-Methylimidazole, 4(or 5)-Methylimidazole, 4-Methyl-1H-imidazole, 4-Methylimidazole, 5-Methyl-1H-imidazole, 5-Methylimidazole

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About This Item

Empirical Formula (Hill Notation):
C4H6N2
CAS Number:
822-36-6
Molecular Weight:
82.10
Beilstein:
1453
EC Number:
212-497-3
MDL number:
MFCD00005201
UNSPSC Code:
12352005
PubChem Substance ID:
24851942
NACRES:
NA.22

Quality Level

100

Assay

98%

bp

263 °C (lit.)

mp

44-47 °C (lit.)

solubility

H2O: soluble, clear, colorless to yellow (50 mg/mL)

SMILES string

Cc1c[nH]cn1

InChI

1S/C4H6N2/c1-4-2-5-3-6-4/h2-3H,1H3,(H,5,6)

InChI key

XLSZMDLNRCVEIJ-UHFFFAOYSA-N

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General description

4(5)-Methylimidazole was quantified in coffee by GC-MS method.

Pictograms

CorrosionExclamation mark
GHS05,GHS07

Signal Word

Danger

Hazard Statements

H302 + H312,H314

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Oral - Skin Corr. 1B

Storage Class Code

8A - Combustible corrosive hazardous materials

WGK

WGK 2

Flash Point(F)

314.6 °F - closed cup

Flash Point(C)

157 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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Shinji Hashimoto et al.
Biochemistry, 45(32), 9660-9667 (2006-08-09)
Ultraviolet resonance Raman (UVRR) spectroscopy has been used to characterize the structure and hydrogen bonding state of the distal histidine (His42) in horseradish peroxidase (HRP) complexed with carbon monoxide (HRP-CO). The HRP-CO - HRP UVRR difference spectrum in D(2)O solution
Kwang-Geun Lee et al.
Food chemistry, 136(3-4), 1165-1168 (2012-12-01)
Aqueous caramel model systems consisted the D-glucose/NH(3)/sulphite were heated at 100°C for 2 h and amounts of carcinogenic 4(5)-methylimidazole (4-MI) formed were determined. The amount formed ranged from 7.0 to 155.0 ppm. A system with 0.1 M sulphite yielded the
P C Chan et al.
Archives of toxicology, 82(1), 45-53 (2007-07-11)
4-Methylimidazole (4MI) is used in the manufacture of pharmaceuticals, photographic chemicals, dyes and pigments, cleaning and agricultural chemicals, and rubber. It has been identified as a by-product of fermentation in foods and has been detected in mainstream and side stream
Eric D Watt et al.
Biophysical journal, 101(2), 411-420 (2011-07-20)
Rate-limiting millisecond motions in wild-type (WT) Ribonuclease A (RNase A) are modulated by histidine 48. Here, we incorporate an unnatural amino acid, thia-methylimidazole, at this site (H48C-4MI) to investigate the effects of a single residue on protein motions over multiple
Satoshi Ueda et al.
Journal of the American Chemical Society, 134(1), 700-706 (2011-12-01)
The completely N(1)-selective Pd-catalyzed arylation of unsymmetric imidazoles with aryl halides and triflates is described. This study showed that imidazoles have a strong inhibitory effect on the in situ formation of the catalytically active Pd(0)-ligand complex. The efficacy of the
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