1P-LSD (1-propanoyl-LSD) is a novel lysergamide that first arose into prominence in January 2015. It is an N-propanoyl amide of LSD itself. Furthermore, It resembles the indole prodrug structure of MLD-41, and ALD-52. Each blotter contains 100 mcg of the compound. It is NOT intended for human consumption, and is strictly for laboratory reagent or forensic analysis purposes ONLY. It is available only as the hemi-tartrate salt.