Synonyms: BRN 4478907;1-Ethyl-6,7-dihydroxy-4-oxo-1,4-dihydroquinoline-3-carboxylic acid;3-Quinolinecarboxylic acid, 1,4-dihydro-6,7-dihydroxy-1-ethyl-4-oxo-;6,7-Dihydroxy-1-ethyl-4-oxo-1,2-dihydro-3-quinolinecarboxylic acid;AC1NUTNP;LS-141581;1-ethyl-6,7-dihydroxy-4-oxoquinoline-3-carboxylic acid;18465-39-9