The course provides a systematic approach to the identification of an unknown substance, based on the chemical behavior of the compound, through selective chemical assays for the identification of the main functional groups and specific assays present in the Pharmacopoeia. Combustion, Qualitative Elemental Analysis (Lassaigne), Le Rosen and Friedl-Craft, oxidation reactions, reaction of iodoform.Solubility. Functional group reactions. Identification of medicines recorded in the European Pharmacopeia 7th Edition.