英文别名BENZAMIDE, 5-FORMYL-2-HYDROXY-; Labetalol Impurity 3; Labetalol Hydrochloride Impurity 13; Labetalol Impurity 19; Labetalol Impurity I; Labetalol hydrochloride impurity M; 2-hydroxy-5-formylbenzamid; 5-formylsalicylamide; 5-formyl-2-hydroxy-benzamide; BENZAMIDE,5-FORMYL-2-HYDROXY; salicylamide-4-carboxaldehyde 
