4-Hydroxy-benzoic Acid Hydrazide; p-Hydroxy-benzoic Acid Hydrazide; (4-Hydroxybenzoyl)hydrazine; (p-Hydroxybenzoyl)hydrazine; 4-Hydroxybenzhydrazide; 4-Hydroxybenzohydrazide; 4-Hydroxybenzoic Acid Hydrazide; 4-Hydroxybenzoyl Hydrazide; INHd 25; NSC 647; p-Hydroxybenzhydrazide; p-Hydroxybenzohydrazide; p-Hydroxybenzoic Acid Hydrazide; p-Hydroxybenzoic Hydrazide; p-Hydroxybenzoyl Hydrazide