The ring is present in polybenzimidazoles.
A group of antifungal drugs active against a wide range of fungi and yeasts. Some are also effective against bacteria and helminths. Econazole, clotrimazole, ketoconazole, fluconazole and itraconazole are examples: the drugs are given by mouth or as creams.
An organic compound, C3H4N2, characterized structurally by the presence of the heterocyclic ring that occurs in histidine and histamine.