Dimethylrosoxacin

7-(2,6-dimethyl-4-pyridyl)-1-ethyl-1,4-dihydro-4-oxoquinoline-3-carboxylic acid

7-(2,6-Dimethyl-4-pyridinyl)-1-ethyl-1,4-dihydro-4-oxo-3-quinolinecarboxylic acid