英文别名3,4-Dimethylstyrene; 4-Vinyl-o-xylene; 4-ethenyl-1,2-dimethyl-benzene; Benzene, 4-ethenyl-1,2-diMethyl-; Dexmedetomidine Impurity 48; Medetomidine Impurity 59; 4-ethenyl-1,2-dimethylbenzene; Benzene,4-ethenyl-1,2-dimethyl; 4-VINYL-1,2-DIMETHYL-BENZENE; 3,4-dimethyl-styrene; 3,4-Dimethyl-styrol; Styrene,3,4-dimethyl; 3,4-dimethylvinylbenzene 
