Is 5-Methyl-3a,4,7,7a-tetrahydroisobenzofuran-1,3-dione (CAS: 3425-89-6) safe?

5-Methyl-3a,4,7,7a-tetrahydroisobenzofuran-1,3-dione is generally considered safe for laboratory use when proper precautions are taken. However, it should be handled with care due to its potential skin and eye irritation. Protective equipment such as gloves and safety goggles should be worn, and it should be stored in a well-ventilated area away from direct sunlight and sources of ignition. Accidental ingestion or inhalation should be avoided, and exposure should be minimized.