DimethylphenylpiperazineDimethylphenylpiperazine may refer to: Dimethylphenylpiperazinium 2,3-Dimethylphenylpiperazine 2,4-Dimethylphenylpiperazine 2,5-Dimethylphenylpiperazine 3,4-Dimethylphenylpiperazine