Task: Please create a description for a molecule.
Molecule SMILES: O=C1OC(=O)c2c(Cl)c(Cl)c(Cl)c(Cl)c21
Constraint: Answer the question with complete sentences.
Result: 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.
Task: Please create a {#text |!}description for a molecule{# based on its representation|!}.
{#Molecule |!}{SMILES__description}: {SMILES#}
Constraint: Answer the question with {#full|complete!} sentences.
Result: {description#}
O=C1OC(=O)c2c(Cl)c(Cl)c(Cl)c(Cl)c21
4,5,6,7-tetrachloro-2-benzofuran-1,3-dione
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.