2,3-Dichlorophenylpiperazine
2,3-Dichlorophenylpiperazine (2,3-DCPP or DCPP) is a chemical compound from the phenylpiperazine family. It is both a precursor in the synthesis of aripiprazole and one of its metabolites.
Source: Wikipedia — 2,3-Dichlorophenylpiperazine (CC BY-SA 4.0)