131842-91-6 4-(((5-Fluoro-2-hydroxyphenyl)-1-naphthalenylmethylene)amino)butanamide 4-(alpha-(1-Naphthyl)-5-fluoro-2-hydroxybenzylidenimino)butyramide Butanamide, 4-(((5-fluoro-2-hydroxyphenyl)-1-naphthalenylmethylene)amino)-