英文别名1-Methylhexahydro-4H-azepin-4-one; Hexahydro-1-methyl-4H-azepin-4-one; Azelastine Impurity 5; 2,3,4,5,6,7-hexahydro-1-methylazepin-4-one; 1-methyl-1H-hexahydroazepin-4-one; 1-methyl-4-azepanone; 1-Methyl-hexahydro-azepin-4-on; 1-Methyl-hexahydroazepinon-4; 1-methyl-1,2,3,5,6,7-hexahydroazepin-4-one 
