Essential oil analysis of Eusteralis deccanensis Panigrahi (Lamiaceae).

The phytochemical potential of Eusteralis deccanensis has been revealed for the first time. The volatile oil obtained from the leaves and flowers was found to be rich in alpha- and beta-patchoulene. In addition, GC analysis revealed three sesquiterpenes (beta-caryophyllene, beta-bourbonene, beta-elemene), two oxygenated monoterpenes (geranyl acetate, neryl acetate) and one sesquiterpene alcohol (delta-cadinol). The plant possesses a patchoulene chemotype.