199885
4-甲基-1H-咪唑
98%
别名:
1H-4-甲基咪唑, 4(或5)-甲基咪唑, 4-甲基-1H-咪唑, 4-甲基咪唑, 5-甲基-1H-咪唑, 5-甲基咪唑
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关于此项目
经验公式（希尔记法）:
C4H6N2
化学文摘社编号:
分子量:
82.10
UNSPSC Code:
12352005
NACRES:
NA.22
PubChem Substance ID:
EC Number:
212-497-3
Beilstein/REAXYS Number:
1453
MDL number:
Assay:
98%
InChI key
XLSZMDLNRCVEIJ-UHFFFAOYSA-N
InChI
1S/C4H6N2/c1-4-2-5-3-6-4/h2-3H,1H3,(H,5,6)
SMILES string
Cc1c[nH]cn1
assay
98%
bp
263 °C (lit.)
mp
44-47 °C (lit.)
solubility
H2O: soluble, clear, colorless to yellow (50 mg/mL)
Quality Level
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General description
采用GC-MS 法对咖啡中的 4 (5)-甲基咪唑进行定量 。
signalword
Danger
flash_point_f
314.6 °F - closed cup
flash_point_c
157 °C - closed cup
ppe
Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges
hcodes
Hazard Classifications
Acute Tox. 4 Oral - Carc. 1B - Repr. 1B
存储类别
6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
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
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
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
Ileana Elder et al.
Archives of biochemistry and biophysics, 437(1), 106-114 (2005-04-12)
In the site-specific mutant of human carbonic anhydrase in which the proton shuttle His64 is replaced with alanine, H64A HCA II, catalysis can be activated in a saturable manner by the proton donor 4-methylimidazole (4-MI). From 1H NMR relaxivities, we
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