Azelastine EP Impurity A

Chemical Name: Benzoyl Hydrazine; Benzoic Acid Hydrazide; 4-Benzoic Hydrazide; Benzenecarboxylic Acid Hydrazide; Benzhydrazide; Benzohydrazide; Benzoic Hydrazide; Benzoylhydrazine; INHd 14; N-Benzoylhydrazine; NSC 644;