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199885

4-甲基-1H-咪唑

Name: 4-甲基-1H-咪唑
Brand: ALDRICH

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:

822-36-6

分子量:

82.10

UNSPSC Code:

12352005

NACRES:

NA.22

PubChem Substance ID:

24851942

EC Number:

212-497-3

Beilstein/REAXYS Number:

1453

MDL number:

MFCD00005201

Assay:

98%

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属性

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

说明

General description

采用GC-MS 法对咖啡中的 4 (5)-甲基咪唑进行定量。

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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

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

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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Gas chromatographic-mass spectrometric quantification of 4-(5-)methylimidazole in roasted coffee after ion-pair extraction.

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

Formation of carcinogenic 4(5)-methylimidazole in Maillard reaction systems.

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)

Toxicity and carcinogenicity studies of 4-methylimidazole in F344/N rats and B6C3F1 mice.

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

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全球贸易项目编号

货号	GTIN
199885-250G	04061838763440
199885-50G	04061838763457