Benzenedicarboxylic acid


Benzenedicarboxylic acid is a group of chemical compounds which are dicarboxylic derivatives of benzene. Benzenedicarboxylic acid comes in three isomers:
Common NamePhthalic acidIsophthalic acidTerephthalic acid
Systematic Name1,2-benzenedicarboxylic acid1,3-benzenedicarboxylic acid1,4-benzenedicarboxylic acid
Structural Formula
CAS Registry Number88-99-3121-91-5100-21-0

All isomers share the molecular weight 166,13 g/mol and the chemical formula C8H6O4.