Oxolinic acid is a quinolinemonocarboxylic acid with the carboxy group at position 7, an oxo group at position 4, and an ethyl group at position 1. It contains a dioxolo ring fused at the 5- and 6-positions. A synthetic antibiotic used in veterinary medicine for treating bacterial infections in cattle, pigs, and poultry, it functions as an antiinfective agent, antibacterial drug, enzyme inhibitor, antimicrobial agent, and antifungal agent. It is classified as a quinolinemonocarboxylic acid, organic heterotricyclic compound, aromatic carboxylic acid, oxacycle, and quinolone antibiotic. It is also the conjugate acid of an oxolinate.
