Phthalide

Phthalide is an organic chemical compound with the molecular formula C8H6O2. It is a white solid and the simplest benzo lactone.

Phthalide is prepared from hydroxymethylbenzoic acid. It is usually made by reduction of phthalic anhydride.

Phthalide is useful in:

• Proteomics research
• Lowering blood pressure
• Improving learning, thinking, and memory
• The dye industry

Phthalide is found in:

• Celery
• Several plant families
• Some genera of fungi and liverworts

Phthalide has the following properties:

• Melting point: 71-74 °C
• Color: White to light beige
• Odor: Sweet tonka coumarin, powdery coconut, phenolic, lactonic, coumarinic
• Water solubility: Sparingly soluble