27333-37-5

Ethyl 4,8-Dihydroxyquinoline-3-carboxylate ethyl 8-hydroxy-4-oxo-1H-quinoline-3-carboxylate 4,8-dihydroxy-3-Quinolinecarboxylic acid ethyl ester 3-Quinolinecarboxylic acid, 4,8-dihydroxy-, ethyl ester Ethyl 8-hydroxy-4-oxo-1,4-dihydroquinoline-3-carboxylate