The essential oil of Salvia aegyptiaca was analysed by GC/ MS technique. Eighteen compounds were identified. It was found that the essential oil comprises 40% terpenoidal constituents, opposite to 32% fat derivatives. The major terpenoidal component was 1(10)- aristolene (19.3%). From the non-volatile matter, ?-amyrin, lupeol, ?-sitosterol, stigmasterol, ?-sitosterol-?-D-glucopyranoside and stigmasterol-?-Dglucopyranoside as well as 3?-hydroxy-24-alkylcarboxylate-12- oleanan-28-oic acid. Fatty acids esters were isolated and identified by spectral means
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