Lysergic acid amylamide
Lysergic acid amylamide, also known as lysergic acid pentylamide or as N-pentyllysergamide (NPe-LA), is a serotonin receptor modulator of the lysergamide family related to the psychedelic drug lysergic acid diethylamide (LSD). It is the analogue of LSD in which the N,N-diethyl groups have been replaced with an N-pentyl group (amyl group) and is also the N-pentyl derivative of ergine (lysergic acid amide; LSA).