3-Chlorophthalic anhydride is a monochlorinated aromatic anhydride. It is an isomer of 4-chlorophthalic anhydride and a derivative of phthalic anhydride.
Properties 3-Chlorophthalic anhydride has a melting point of around 123 °C. It may hydrolize in presence of water.
Applications 3-Chlorophthalic anhydride may be used to produce herbicides and pesticides, intermediates for active pharmaceutical ingredients and can be used as a monomer for the production of polyimides.
See also 4-Chlorophthalic anhydride
References Preparation of 3-chlorophthalic anhydride http://www.freepatentsonline.com/5683553.html