Trifluoromethylphenylpiperazine (TFMPP) is an organic chemical substance. It is a derivative of Piperazine. It is sometimes used as a part of other illegal drugs. It is sometimes used as a replacement for the drug MDMA, or as a component of Ecstasy pills. TFMPP has no known use in the chemical industry. Its action is si milar to that of MDMDA in many ways.