Question: What is the flash point of O=C1C=Cc2ccc3c4c(ccc1c24)C=CC3=O?
Answer: 450.950 K.
{#Question: |Q: !}What is the {flashpoint__names__noun} of {SMILES#}?
{#Answer: |A: |!}{#The flashpoint point is |!}{flashpoint#} {flashpoint__units}.