A metabolite of new designer drug α-Pyrrolidinopropiophenone (PPP). α-Pyrrolidinophenones like 4'-Methyl-α-pyrrolidinopropiophenone (MPPP), 4'-Methoxy-α-pyrrolidinopropiophenone (MOPPP), 3',4'-Methylenedioxy-α-pyrrolidinopropiophenone (MDPPP) and 4'-Methy |