SMILES: C12=C(C(=C(C(=C1Cl)Cl)Cl)Cl)C(=O)OC2=O
Description: The molecule is a cyclic dicarboxylic anhydride that is phthalic anhydride chlorinated at the 4-, 5-, 6- and 7-positions. It has a role as a cross-linking reagent and an allergen. It is a cyclic dicarboxylic anhydride and a tetrachlorobenzene. It derives from a phthalic anhydride.