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I0250 Sigma-Aldrich

Imidazole

≥99% (titration), crystalline

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

  • CAS Number 288-32-4

  • Empirical Formula (Hill Notation) C3H4N2

  • Molecular Weight 68.08

  •  Beilstein/REAXYS Number 103853

  •  EC Number 206-019-2

  •  MDL number MFCD00005183

  •  eCl@ss 39161001

  •  PubChem Substance ID 24895898

  •  NACRES NA.25

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Properties

Related Categories Biochemicals and Reagents, Biological Buffers, Buffers A to Z More...
Quality Level   300
vapor pressure   <1 mmHg ( 20 °C)
assay   ≥99% (titration)
form   crystalline
impurities   ≤0.005% Fluorescence blank (β-NADH equivalence.)
color   white
pH   6.2-7.8 (25 °C)
pKa (25 °C)   6.95
bp   256 °C (lit.)
mp   88-91 °C (lit.)
solubility   water: 500 mg/mL, clear, colorless to very faintly yellow
storage temp.   room temp
SMILES string   c1c[nH]cn1
InChI   1S/C3H4N2/c1-2-5-3-4-1/h1-3H,(H,4,5)
InChI key   RAXXELZNTBOGNW-UHFFFAOYSA-N

Description

Packaging

1, 5, 25, 100, 250 g in glass bottle

Application

Excellent for buffers in the range of pH 6.2-7.8

Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
Hazard statements 
RIDADR 
UN 3263 8 / PGIII
WGK Germany 
WGK 2
RTECS 
NI3325000

Single- & multi-channel pipettes from BRAND
Protocols & Articles

Articles

Sildenafil Citrate USP Method Using HPTLC Plates for the Limit of Imidazole Test

Sildenafil, sold under the brand name Viagra, among others, is a medication that can be used as a selective inhibitor of cyclic GMP- specific photodiesterase (type V) with vasodilator action. It can ...
Sanjay Poman
Merck KGaA, Darmstadt, Germany, Life Science Application Centre (GAC), Mumbai, India
Keywords: Thin layer chromatography

Protocols

Enzymatic Assay of Fructose-6-Phosphate Kinase Pyrophosphate Dependent

To standardize a procedure for the enzymatic assay of Fructose -6- Phosphate Kinase (Pyrophosphate Dependent) from Propionibacterium Freudenreichii (Shermanii).
Keywords: Atomic layer deposition, Extinction coefficient

Related Content

BioUltra Biological Buffers

A buffer, as defined by Van Slyke [1], is "a substance which by its presence in solution increases the amount of acid or alkali that must be added to cause unit change in pH". Buffers are thus very i...
Keywords: Absorption, Adsorption, Biochemistry, Biological Buffers, Biological processes, Buffers, PAGE

Peer-Reviewed Papers
15

References

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