Phthalic Anhydride

Abstract

Phthalic anhydride (85-44-9) is an organic compound which is an anhydride of phthalic acid. This colorless solid is an important industrial chemical, especially for the large-scale production of plasticizers. Phthalic anhydride is a potent skin and respiratory tract sensitizer. Occupational exposure to phthalic anhydride may occur through dermal contact with this compound at workplaces in which it is produced or used.