Illustrated Glossary of Organic Chemistry

Phthalic acid: A dicarboxylic acid consisting of a benzene ring with the carboxylic acid groups on adjacent (ortho) carbons. IUPAC name benzene-1,2-dicarboxylic acid.

Molecular structure of phthalic acid.

Some Phthalic Acid Derivatives



Phthalic anhydride
An anhydride
   
Phthalimide
An imide
   
Dioctyl phthalate
A plasticizer