User: I have a question about the compound with SMILES O=C([O-])c1ccccc1.[Na+].
Assistant: That sounds interesting, how can I help?
User: What is the first recorded year of approval for this drug?
Assistant: 1987
User: I have a question about the {#molecule|chemical|compound!} with {SMILES__description} {SMILES#}.
Assistant: {#Sure, what is your question?|How can I help?|That sounds interesting, how can I help?|Interesting, how can I help?!}
User: {quest#}
Assistant: {#The answer is |!}{answ#}
O=C([O-])c1ccccc1.[Na+]
O=C([O-])c1ccccc1.[Na+]
sodium;benzoate
What is the first recorded year of approval for this drug?