673-49-4 Acetamide, N-(2-(1H-imidazol-4-yl)ethyl)- (9CI) Acetamide, N-(2-imidazol-4-ylethyl)- (8CI) Acetylhistamine EINECS 211-610-3 N-(2-(1H-Imidazol-4-yl)ethyl)acetamide N-(2-(Imidazol-4-yl)ethyl)acetamide N-Acetylhistamine NSC 66356