3-Quinolinecarboxylic acid, 1,4-dihydro-4-oxo-6,7,8-trifluoro-, ethyl ester 79660-46-1 BRN 4814660 DM-7 Ethyl 1,4-dihydro-4-oxo-6,7,8-trifluoro-3-quinolinecarboxylate