User: I have a question about the compound with SMILES O=c1ncn2nc(Sc3ccc(F)cc3F)ccc2c1-c1c(Cl)cccc1Cl.
Assistant: How can I help?
User: What is the molecular weight of this compound's parent molecule?
Assistant: 436.27
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=c1ncn2nc(Sc3ccc(F)cc3F)ccc2c1-c1c(Cl)cccc1Cl
O=c1ncn2nc(Sc3ccc(F)cc3F)ccc2c1-c1c(Cl)cccc1Cl
5-(2,6-dichlorophenyl)-2-(2,4-difluorophenyl)sulfanylpyrimido[1,6-b]pyridazin-6-one
What is the molecular weight of this compound's parent molecule?
436.27