| 3',4'-methylenedioxy-2-(4-piperonylpiperazin-1-yl)-acetophenon dihydrochlor |
| 3',4'-methylenedioxy-2-(4-piperonyl-piperazin-1-yl)acetophenone dihydrochlori |
| 4-piperonyl-1-piperonyloylmethylpiperazine dihydrochloride |
| 2-(4-piperonylpiperazin-1-yl)-acetopiperon dihydrochloride |
| 3',4'-methylenedioxy-2-(4-piperonylpiperazin-1-yl)-acetophenon dihydrochloride |
