Leaves Caesalpia sappan a double pinnate compound leaves, 25-40 cm long, 10-20 pairs of leaflets which lies opposite. Leaves the child is not stemmed, oval shaped, tip round, flat edge and almost parallel, 10-25 mm long, 3-11 mm wide, it's green. Panicle-shaped flowers are compound interest, emerging from the end of the shaft with a length of 10-40 cm, crown shape tube, the color yellow. The fruit pod, 8-10 cm long, 3-4 cm wide, beak-like tip contains 3-4 seeds, when ripe black. Seeds rounded elongate, length 15-18 mm, width 8-1 1 mm, 5-7 mm thick, brownish yellow. Timber harvesting can be done starting at the age of 1-2 years. The wood when boiled to produce a red color like ivory young, can be used for painting, gives color to the woven material, cakes, drinks or as ink.
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Caesalpinia sappan contains a number of fenol pigment and one that had long been isolated is brazilin which is the main pigment. Other chemical compounds have been isolated are compounds which contain flavonoids, saponins, tannins, resins, and brazilein resorsin. The leaves of this plant contain flavonoids, sapanin, tannin, and a colorless volatile oil. The compounds contained in extracts of Caesalpinia sappan can reduce cholesterol absorption and increase excretion, so as to reduce the cholesterol that enters the body. In vitro, the wood of these plants contain compounds that have the potential as an antioxidant and can prevent and reduce free radicals.