Wikipedia
Indapyrophenidone
Indapyrophenidone is a synthetic drug of the cathinone class that has been sold online as a designer drug.
The substance is the indanyl-α-phenyl analogue of the stimulant drug α-PVP, however it is also structurally related to diarylethylamines such as fluorolintane and UWA-001. Its mechanism of action is unknown.