How should 4-Bromo-1H-indole-2,3-dione (CAS: 20780-72-7) be stored?

4-Bromo-1H-indole-2,3-dione should be stored in a tightly sealed container in a cool, dry place away from direct sunlight and heat sources. The storage temperature should be maintained below 30°C to prevent degradation. Containers should be kept in a well-ventilated area away from incompatible materials such as reducing agents, acids, and bases. Adequate fire protection measures should also be in place in case of accidental spillage or fire.