How should Phenolate, 4,4'-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis-, sodium salt (1:1) (CAS: 34487-61-1) be stored?

Phenolate, 4,4'-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis-, sodium salt (1:1) should be stored in a cool, dry, and dark place to maintain its stability. It is best kept in a sealed container to prevent moisture absorption. Storage conditions should be below 25°C and away from direct sunlight to avoid decomposition. Proper ventilation is also recommended to ensure safe handling and storage of this compound.