Buy 1D-LSD (150mcg Blotters) 1D-LSD, or 1-dimethylcyclobutane-lysergic acid diethylamide, is a structural analog of 1V-LSD, introduced as a next-generation lysergamide. It features a dimethylcyclobutane-carbonyl group at the nitrogen position, differentiating it from earlier lysergamide derivat