APCYP Crystal for sale APCYP Crystal, also known as 2-A1MP Crystal, is a research chemical belonging to the cathinone class. The IUPAC name for APCYP is N-(adamantan-1-yl)-1-(4-cyanophenyl)propan-2-amine, and its CAS number is N/A. In its crystal form, APCYP appears as a fine, white crystal with a high level of purity, typically 98.0% or higher. This compound is highly sought after by researchers studying the effects of cathinones on the brain and behavior due to its potent and unique properties.