14-Methoxy-LSD
14-Methoxy-LSD is a lysergamide related to lysergic acid diethylamide. It is the derivative of LSD with a methoxy group at the 14 position and is the O-methyl ether of 14-hydroxy-LSD. Unlike 13-hydroxy-LSD and 13-methoxy-LSD and other related compounds like 12-hydroxy-LSD and 12-methoxy-LSD, 14-hydroxy-LSD and 14-methoxy-LSD did not produce LSD-like electroencephalogram changes in rabbits. 14-Methoxy-LSD was first described in the scientific literature by 1979.