Trifluoromethanesulfonic acid 2-(Trifluoromethyl)benzoic acid 3-(Trifluoromethyl)benzaldehyde Phenylhydrazine hydrochloride Phenylhydrazine 4-Methylphenylhydrazine hydrochloride PHENYL VALERATE 3-Fluorophenylhydrazine hydrochloride 2-(Trifluoromethyl)phenylhydrazine hydrochloride 3-(Trifluoromethyl)phenylhydrazine hydrochloride