The Phenol coefficient of disinfectants on Vibrio anguillarum (Strain:830222-1Gb) bacteria were tested with ten chemotherapeutic agents:SEPTOBAR, B. K. C-50, DUOQUAT-80, SANISOL C, BIOBACIDE-50, IODORIN-2000, NPEEI-500, Iodophor, Povidone-Iodine, Phenoxythanol.