Task: Please answer the following question about the molecule with SMILES O=C([O-])c1ccccc1.[Na+].
Description: What is the first recorded year of approval for this drug?
Result: 1987
Task: Please answer the following question about the molecule with {SMILES__description} {SMILES#}.
{#Description|Question|Request!}: {quest#}
{#Result|Answer|Completion!}: {answ#}
O=C([O-])c1ccccc1.[Na+]
O=C([O-])c1ccccc1.[Na+]
sodium;benzoate
What is the first recorded year of approval for this drug?