1-CHLORO-3,5-DIMETHYLADAMANTANE;5-chloro-1,3-dimethyladamantane;1-Chloro-3,5-dimethoxyladamantane;MeMantine Related CoMpound C;Memantine Related Compound C (50 mg) (1-Chloro-3,5-dimethyladamantane);Memantine USP RC C;1-Chloro-3,5-dimethyladmantane;Memantine Impurity 3(Memantine USP RC C)