Phthalic acid

Similar term(s): 1,2-benzenedicarboxylic acid.

Phthalic acid is an organic compound derived from benzene and used in the manufacture of dyes, perfumes, pharmaceuticals, and synthetic fibers.

Phthalic acid has a chemical formula C₆H₄(CO₂H)₂ and comprises a six-carbon benzene ring with two carboxylic acid groups (-COOH) attached.

Source: GreenFacts

Chemical structure of phthalic acid.

Source: tennoji oka Phthalic acid 

Phthalates