Imidazole

Imidazole (ImH) is an organic compound. It is an aromatic ring with five atoms, three carbon and two nitrogen. Its chemical formula is  or . Imidazole is an aromatic compound. It is a white or colourless solid at 25 degrees Celsius at standard atmosphere (a pressure). It i is soluble in water, producing a mildly alkaline solution.

 Role in biology 
Many natural products, especially alkaloids, have the imidazole ring. This ring system is present in important biological building blocks, such as histidine, and the related hormone, histamine.

 Properties 
Only one of the nitrogen atoms in imidizole acts as a base. The other nitrogen atom is bonded to a hydrogen atom that acts like a weak acid. Because it can be both an acid and a base, imidazole is amphoteric.

References

Category:Amphoteric compounds
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