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Imidazole

SIAL/792527 - anhydrous, free-flowing, Redi-Dri™, ACS reagent, ≥99%

Synonym: 1,3-Diaza-2,4-cyclopentadiene; Glyoxaline

CAS Number: 288-32-4
Empirical Formula (Hill Notation): C3H4N2
Molecular Weight: 68.08
EC Number: 206-019-2
MDL Number: MFCD00005183
Linear Formula: C3H4N2
Product Type: Chemical
Catalog Number PKG Qty. Price Quantity
45-792527-100G 100 g
 $60.90
1/EA		 Add To Favorites
45-792527-500G 500 g
 $156.00
1/EA		 Add To Favorites
45-792527-1KG 1 kg
 $293.00
1/EA		 Add To Favorites
Redi-Dri free-flowing salts
Loss on Drying Graph
Free-flowing salts
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material.

This image depicts SKU: 792527-100G
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material.

This image depicts SKU: 792527-500G
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material.

This image depicts SKU: 792527-1KG

 

assay ≥99%
bp 256 °C (lit.)
cation traces Fe: ≤0.001%
form solid
grade ACS reagent
  anhydrous
ign. residue ≤0.1%
impurities ≤0.2% water
InChI 1S/C3H4N2/c1-2-5-3-4-1/h1-3H,(H,4,5)
InChI key RAXXELZNTBOGNW-UHFFFAOYSA-N
mp 88-91 °C (lit.)
pH 9.5-11.0 (25 °C, 5% in H2O)
pKa (25 °C) 6.95
product line Redi-Dri™
quality free-flowing
Quality Level 200 
SMILES string c1c[nH]cn1
vapor pressure <1 mmHg ( 20 °C)
Application: Excellent for buffers in the range of pH 6.2-7.8
Application: 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      
• 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
Packaging: 1 kg in poly bottle
Packaging: 100, 500 g in poly bottle
Purity ≥99%
bp 256 °C (lit.)
mp 88-91 °C (lit.)
UNSPSC 12352100

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