Molineria latifolia (Singkut rhizome) is an endemic plant in tropical and humid climates, so it widely distributed several Asian countries. This study determines the antioxidant activity of rhizome ethanol extract isolated compounds. The a strong category with IC50 26.033 ppm. results isolation are known to contain 2,6-dimethoxy-benzoic acid 4-hexyl-2,5-dihydro-2,5-dioxo-3-furanacetic