Myrcianthes pungens (Myrtaceae) is a native tree to Brazil known as guabijú. In our study, we described the chemical composition of essential oil from M. dried leaves, antioxidant activity by different methods and antibacterial against Staphylococcus aureus, Bacillus cereus Pseudomonas aeruginosa. The identification was done gas chromatograph coupled mass spectrometer evaluated broth microdilut...