52851-60-2

1-ethyl-1 Brn 0489054 2-dihydro-4-hydroxy-2-oxo- ethyl 1-ethyl-4-hydroxy-2-oxo-1,2-dihydroquinoline-3-carboxylate 1-Ethyl-4-hydroxy-2-oxo-1,2-dihydroquinoline-3-carboxylic acid ethyl ester 3-Quinolinecarboxylic acid, 1,2-dihydro-1-ethyl-4-hydroxy-2-oxo-, ethyl ester 3-Quinolinecarboxylic acid, 1-ethyl-1,2-dihydro-4-hydroxy-2-oxo-, ethyl ester