Synonyms: St 600;2-Imidazoline,2-(5-fluoro-o-toluidino)- (8CI); St 600(pharmaceutical); 2-(5-Fluoro-2-methylanilino)-2-imidazoline; Flutonidine;1H-Imidazol-2-amine,N-(5-fluoro-2-methylphenyl)-4,5-dihydro-;2-[(5-Fluoro-2-methylphenyl)amino]-2-imidazoline;