1,4-dichloro-2,3,5,6-tetramethylbenzene

N,N-二甲基甲酰胺

3,6-双(溴甲基)-2,4,5-三甲基甲苯

4-dichloromethyl-2,3,5,6-tetramethylbenzaldehyde

2,3,5,6-四甲基苯甲醛