PRO-LAD

Also known as 6-NORLYSERGAMIDE, N,N-DIETHYL-6-PROPYL, N,N-DIETHYLNORLYSERGAMIDE, 6-PROPYL, 6-PROPYLNORLYSERGIC ACID, N,N-DIETHYLAMIDE, 9,10-DIDEHYDRO-6-PROPYL-N,N-DIETHYLERGOLINE-8b-CARBOXAMIDE, 6-PROPYL-NOR-LSD

Part of a family of LSD analogues that can be compared directly to LSD itself, with potency dropping roughly tenfold or more as the substituent grows heavier; listed relatives range from mildly active in the microgram range to inactive. The commentary is chiefly about this research opportunity and a proposed radiolabeled version rather than detailed subjective effects.