Karl Fischer reagent. Imidazole can be used for the elution of histidine containing proteins from divalent cation resins. Imidazole can be used to prepare buffers in the pH range of 6.2-7.8 at 25C. It is also a chelator for the binding of various divalent cations. Synonyms: 1,3-Diazo-2,4-cyclopentadiene, 1H-Imidazole, 1,3-Diazacyclopenta-2,4-diene, 1,3-diazole CAS No: 288-32-4 Molecular Formula: C3H4N2 Molecular Weight: 68.08 Appearance: White to off-white crystal Purity: 99% (Titration, GC) Melting Point: ~90C Iron (Fe): 0.001% Water (Karl Fisher): 0.2% pH: 9.5-11.0 (5% solution at 25C) Residue after Igniton: 0.1% Storage and Stability: May be stored at 4C. Stable for 12 months at -20C after receipt. Meets or exceeds ACS specifications
Molekulargewicht:
68.08
Reinheit:
99% (Titration, GC)
Formulierung:
White to off-white crystal
CAS Nummer:
[288-32-4]
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