TH-PVP is a new stimulant research chemical with the IUPAC or formal name of 2-(pyrrolidin-1-yl)-1-(5,6,7,8-tetrahydronaphthalen-2-yl)pentan-1-one, chemical formula of C19H27NO. Is a brand new replacement of A-PVP. TH-A-PVP Crystal is also known as Î±-PVP, A-PVP, alpha-PVP, and flakka. It is chemically related to prolintane and belongs to substituted cathinones group of cathinones class. It belongs to substituted cathinone class. Cathinone is been found from the leaves of the plant Catha edulis. A-PVP is associated with compulsive use and addiction.