The leaf essential oil of Casimiroa edulis (Rutaceae), collected from Monteverde, Costa Rica, has been obtained by hydrodistillation and analyzed by GC-MS. The leaf oil was dominated by sesquiterpene hydrocarbons, predominately germacrene D (16-22%) and (E)-caryophyllene (16-17%), consistent with
The phytochemical investigation of Casimiroa edulis Llave et Lex (Rotaceae) afforded four coumarins: umbelliferone (1), esculetin (2), imperatorin (3) and xanthotoxol (4). The identification of these compounds was achieved by using a combination of m.p., UV, EI-mass, ¹H NMR and ¹³C NMR spectroscopy.