792527
Imidazole
anhydrous grade, ACS reagent grade, ≥99%, Redi-Dri™, free-flowing, solid
Synonym(s):
1,3-Diaza-2,4-cyclopentadiene, Glyoxaline
Sign In to View Organizational & Contract Pricing.
Select a Size
Change View
About This Item
Empirical Formula (Hill Notation):
C3H4N2
CAS Number:
Molecular Weight:
68.08
NACRES:
NA.21
PubChem Substance ID:
UNSPSC Code:
12352100
EC Number:
206-019-2
MDL number:
Beilstein/REAXYS Number:
103853
Assay:
≥99%
Form:
solid
Product Name
Imidazole, anhydrous, free-flowing, Redi-Dri™, ACS reagent, ≥99%
Quality Level
grade
ACS reagent, anhydrous
vapor pressure
<1 mmHg ( 20 °C)
product line
Redi-Dri™
assay
≥99%
form
solid
quality
free-flowing
impurities
≤0.2% water
ign. residue
≤0.1%
pH
9.5-11.0 (25 °C, 5% in H2O)
pKa (25 °C)
6.95
bp
256 °C (lit.)
mp
88-91 °C (lit.)
cation traces
Fe: ≤0.001%
SMILES string
c1c[nH]cn1
InChI
1S/C3H4N2/c1-2-5-3-4-1/h1-3H,(H,4,5)
InChI key
RAXXELZNTBOGNW-UHFFFAOYSA-N
Application
Excellent for buffers in the range of pH 6.2-7.8
Imidazole can be used as a proton transfer agent in the synthesis of porous organic polymers because of its amphiprotic nature and fast proton transfer behavior.
Imidazole can be used as a catalyst in the following
Imidazole can be used as a catalyst in the following
- Silylation of alcohols, carboxylic acids, and amines in the presence of silyl chloride in DMF.
- To prepare acid chlorides from the corresponding carboxylic acids and phosgene.
- Imidazole-PPh3/I2 catalytic system used in the conversion of alcohols into iodides.
- Imidazole-PPh3/I2 is used in the diol deoxygenation reaction.
Legal Information
Redi-Dri is a trademark of Sigma-Aldrich Co. LLC
Still not finding the right product?
Explore all of our products under Imidazole
signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 4 Oral - Eye Dam. 1 - Repr. 1B - Skin Corr. 1C
Storage Class
6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
wgk
WGK 2
flash_point_f
293.0 °F - closed cup
flash_point_c
145 °C - closed cup
Choose from one of the most recent versions:
Already Own This Product?
Find documentation for the products that you have recently purchased in the Document Library.
Joy Rathjen et al.
Reproduction, fertility, and development, 26(5), 703-716 (2013-06-14)
Human embryonic stem (ES) cells have been proposed as a renewable source of pluripotent cells that can be differentiated into various cell types for use in research, drug discovery and in the emerging area of regenerative medicine. Exploitation of this
Joel E Schmidt et al.
Angewandte Chemie (International ed. in English), 53(32), 8372-8374 (2014-06-26)
Crystalline molecular sieves are used in numerous applications, where the properties exploited for each technology are the direct consequence of structural features. New materials are typically discovered by trial and error, and in many cases, organic structure-directing agents (OSDAs) are
E Rosalie Witjas-Paalberends et al.
The Journal of physiology, 592(15), 3257-3272 (2014-06-15)
The first mutation associated with hypertrophic cardiomyopathy (HCM) is the R403Q mutation in the gene encoding β-myosin heavy chain (β-MyHC). R403Q locates in the globular head of myosin (S1), responsible for interaction with actin, and thus motor function of myosin.