1-(p-Methoxyphenyl)hydrazine hydrochloride 19501-58-7 4-Methoxyphenylhydrazine hydrochloride Hydrazine, (4-methoxyphenyl)-, monohydrochloride Hydrazine, (p-methoxyphenyl)-, monohydrochloride NSC84699 p-Anisylhydrazine hydrochloride p-Methoxyphenylhydrazine hydrochloride