116324-98-2 2-Hydroxy-1-naphthylaldehyde 3-fluorobenzoylhydrazone 2-Hydroxy-1-naphthylaldehyde m-fluorobenzoylhydrazone 3-Fluorobenzoic acid ((2-hydroxy-1-naphthalenyl)methylene)hydrazide Benzoic acid, 3-fluoro-, ((2-hydroxy-1-naphthalenyl)methylene)hydrazide HNFBH compound