Task: Answer the following question about the molecule with SMILES O=C([O-])Cc1ccccc1Nc1c(Cl)cccc1Cl.[Na+].
Question: What is the first recorded year of approval for this drug?
Completion: 1988
Task: Answer the following question about the molecule with {SMILES__description} {SMILES#}.
{#Description|Question|Request!}: {quest#}
{#Result|Answer|Completion!}: {answ#}
O=C([O-])Cc1ccccc1Nc1c(Cl)cccc1Cl.[Na+]
O=C([O-])Cc1ccccc1Nc1c(Cl)cccc1Cl.[Na+]
sodium;2-[2-(2,6-dichloroanilino)phenyl]acetate
What is the first recorded year of approval for this drug?