3-Quinolinecarboxylic acid, 4-hydroxy-6(or 7)-(2-methoxyethoxy)-7(or 6)-(2-methylpropyl)-, ethyl ester 78838-01-4 Ethyl 4-hydroxy-6(7)-isobutyl-7(6)-beta-methoxyethoxy-3-quinolinecarboxylate Vufb 6207 Vufb-6207