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IMidazo[1,2-a]pyridine-2-carboxylic acid, 8-hydroxy-, ethyl ester 8-HYDROXY-2H-BENZO[B][1,4]OXAZIN-3(4H)-ONE 6-Isoquinolinecarboxaldehyde (9CI) 3-isoquinolinecarboxaldehyde ISOQUINOLINE-1-CARBALDEHYDE ETHYL ISOQUINOLINE-3-CARBOXYLATE ISOQUINOLINE-5-CARBOXYLIC ACID 7-Isoquinolinecarboxaldehyde (6CI,9CI) 7-isoquinolinecarboxylic acid Methyl 3-isoquinolinecarboxylate