Uruguayan essential oils. Composition of leaf oil ofMyrcianthes cisplatensis (Camb.) Berg. (?Guayabo colorado?) (Myrtaceae)

Myrcianthes cisplatensis leaf oil, obtained by steam distillation, was analysed by GC–FID and GC–MS. Twenty-six components were identified in the oil (90% of the total composition); the enantiomeric distribution of α-pinene, β-pinene, limonene, linalool, terpinen-4-ol and α-terpineol was studied by multidimensional HRGC–HRGC. The major component was 1,8-cineole (54%). The enantiomeric purity for the (+) enantiomers for the monoterpenes studied was 96% for α-pinene, 49% for β-pinene, 100% for limonene, 94% for linalool, 50% for terpinen-4-ol and 64% for α-terpineol.