In organic compound|lang=en terms the difference between imidazole and aminoimidazole

is that imidazole is (organic compound) a group of compounds containing that structure while aminoimidazole is (organic compound) any amino derivative of imidazole, but especially 5-aminoimidazole whose ribonucleotide is an intermediate in the formation of purines.

As nouns the difference between imidazole and aminoimidazole

is that imidazole is (organic compound) a heterocyclic organic compound containing two nitrogen atoms separated by a carbon atom in a five-membered ring, called 1,3-diazole in while aminoimidazole is (organic compound) any amino derivative of imidazole, but especially 5-aminoimidazole whose ribonucleotide is an intermediate in the formation of purines.