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
S Casal et al.
Journal of chromatography. A, 976(1-2), 285-291 (2002-12-05)
A GC-MS method is described for quantification of 4-(5-)methylimidazole (4MI) in coffee. Although tested, GC-flame ionization detection proved inadequate for this purpose due to the complexity of the coffee matrix. The developed method was based on ion-pair extraction with bis-2-ethylhexylphosphate
Matt Hengel et al.
Journal of agricultural and food chemistry, 61(4), 780-789 (2013-01-09)
Since the National Toxicology Program (NTP) identified 4(5)-methylimidazole [4(5)-MI] as a cancer causing chemical in 2007 and the State of California added it to the Proposition 65 list of compounds as a carcinogen on January 7, 2011, many researchers and
Hitomi Yamaguchi et al.
Journal of agricultural and food chemistry, 59(18), 9770-9775 (2011-09-02)
A method for the determination of 4(5)-methylimidazole (4MeI) in naturally brewed soy sauce was developed for the first time using solid-phase extraction (SPE) and liquid chromatography-tandem mass spectrometry (LC-MS/MS). SPE on silica-based reversed-phase cartridges with heptafluorobutyric acid as an ion-pairing
Joon-Kwan Moon et al.
Journal of agricultural and food chemistry, 59(2), 615-618 (2010-12-29)
4(5)-Methylimidazole has received the attention of federal and state regulatory agencies because of its carcinogenicity and common presence in foods and beverages. In the present study, the formation of 4(5)-methylimidazole in Maillard reaction model systems consisting of D-glucose/NH(3), L-rhamnose/NH(3), methylglyoxal/NH(3)
Young-Teck Kim et al.
Talanta, 78(3), 998-1003 (2009-03-10)
Based on the principle of liquid core waveguide, a novel microfluidic device with micro-scale detection window capable of sensing flashlight emitted from rapid 1,1'-oxalyldi-4-methylimidazole (OD4MI) chemiluminescence (CL) reaction was fabricated. Light emitted from OD4MI CL reaction occurring in the micro-dimensional
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