Description
Synonym: 1,3-Diaza-2,4-cyclopentadiene, Glyoxaline
Empirical Formula (Hill Notation): C3H4N2
General description
Imidazole is a five-membered heterocycle that is found in many naturally occurring compounds. It exhibits both acidic and basic properties. It is reported to be an inhibitor of thromboxane formation. Its vertical spectrum and the radiationless decay have been recorded and analyzed.
Application
Excellent for buffers in the range of pH 6.2-7.8
PROPERTIES
grade
ACS reagent
Pack Size
500g
vapor pressure
<1 mmHg ( 20 °C)
Assay
≥99% (titration)
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%
Legal Information
Redi-Dri is a trademark of Sigma-Aldrich Co. LLC
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