User: I have a question about the compound with SMILES O=C(Nc1ccc([N+](=O)[O-])cc1Cl)c1cc(Cl)ccc1O.
Assistant: How can I help?
User: What is the first recorded year of approval for this drug?
Assistant: The answer is 1982
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(Nc1ccc([N+](=O)[O-])cc1Cl)c1cc(Cl)ccc1O
O=C(Nc1ccc([N+](=O)[O-])cc1Cl)c1cc(Cl)ccc1O
5-chloro-N-(2-chloro-4-nitrophenyl)-2-hydroxybenzamide
What is the first recorded year of approval for this drug?