Benzenetricarboxylic acid

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Benzenetricarboxylic acid is a group of chemical compounds which are tricarboxylic derivatives of benzene. Benzenetricarboxylic acid comes in three isomers:

Common Name Hemimellitic acid Trimellitic acid Trimesic acid
Systematic Name 1,2,3-benzenetricarboxylic acid 1,2,4-benzenetricarboxylic acid 1,3,5-benzenetricarboxylic acid
Structural Formula
CAS Registry Number 732304-21-1 528-44-9 554-95-0

All isomers share the molecular weight 210.14 g/mol and the chemical formula C9H6O6.