Butyrophenones are chemical compounds with a ketone functional group that have anti-psychotic and anti-emetic properties. 4-Methyl-α-pyrrolidinobutiophenone is a butyrophenone as well as a synthetic cathinone that has been identified in party pills. α-Pyrrolidinobutiophenone (hydrochloride) is a synthetic cathinone/butyrophenone that has potential for abuse. It’s physiological and toxicological properties are poorly understood. This product is intended for forensic and research applications.