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Appl Environ Microbiol. 1962 November; 10(6): 556-560

Antimicrobial Activity of Metal Chelates of Salts of 8-Quinolinols with Aromatic Hydroxycarboxylic Acids

Pfister Chemical Works, Inc., Ridgefield, New Jersey
Institute of Microbiology, Rutgers, The State University, New Brunswick, New Jersey

ABSTRACT

Thirty-seven metal chelate complexes of salts of 8-quinolinols with aromatic hydroxycarboxylic acids were screened by the disc-plate method against strains of five bacteria and five fungi. The copper (II) chelates of 8-quinolinolium salicylate and 8-quinolinolium-3'-hydroxy-2'-naphthoate showed outstanding antifungal and good antibacterial properties and appear to be potentially more economical than copper (II) 8-quinolinolate.

¹ Present address: Boyce Thompson Institute for Plant Research, Yonkers, N.Y.