The heartwoods of two Centrolobium species (Leguminosae) were examined. C. robustum Mart. was found to contain piceatannol, (-)-centrolobine (VIIa), (-)-de-O-methylcentrolobine (VIIb) and (-)-centrolobol (VI). C. tomentosum Benth. was found to contain (+)-centrolobine (IXa), (+)-de-O-methylcentrolobine (IXb) and (+)-centrolobol (VIII).