title: Chromatographic isolation of caffeine from Palicourea marcgravii.
abstract: Palicourea marcgravii (Rubiacea) is the major toxic plant to cattle in Brazil. We show the presence of the xanthinic alkaloid, caffeine, in this plant's leaves.
mesh_terms: D001938:Brazil; D002110:Caffeine / Q000302:isolation & purification*; D002855:Chromatography, Thin Layer; D010947:Plants, Toxic / Q000032:analysis*
chemical_list: D002110:Caffeine