How should 5-Methyl-3a,4,7,7a-tetrahydroisobenzofuran-1,3-dione (CAS: 3425-89-6) be stored?

5-Methyl-3a,4,7,7a-tetrahydroisobenzofuran-1,3-dione should be stored in a cool, dry place away from direct sunlight and sources of ignition. It should be kept in a tightly sealed container to prevent moisture absorption. The storage area should be well-ventilated, and the compound should be protected from extremes of temperature and humidity. It is important to label the container clearly with the proper hazards and safety information, and to follow all local regulations for chemical storage and disposal.