Results from the Gas Chromatography-Mass Spectrometry (GC-MS) analysis of the essential oil of the flower buds showed that eugenol (72.8%) is the major constituent of essential oil of Syzygium aromaticum. The clove oil was characterized by high content of phenylpropanoids (72.8%) and sesquiterpene hydrocarbons (23%). Eugenol, β -caryophyllene, α-humulene and δ-cadinene found in the essential oil of the flower buds were also found in the leaf oil as reported by Riyanto et al, 2016. The relative abundance of the sesquiterpene hydrocarbons of the clove oil can be linked to the lower volatility of the oil . The high level of eugenol in clove essential oil was also reported to be responsible for its strong antimicrobial activity