Ethylone
Ethylone , also known as 3 , 4-methylenedioxy-"N"-ethylcathinone ( MDEC , βk-MDEA ) , is a recreational designer drug classified as an entactogen , stimulant , and psychedelic of the phenethylamine , amphetamine , and cathinone chemical classes . 
<triplet> amphetamine <subj> phenethylamine <obj> subclass of <triplet> cathinone <subj> amphetamine <obj> subclass of