Task: Estimate the flash point of O=C1C=Cc2c(ccc3c2ccc2ccccc23)C1=O.
A: The flash point is 490.350 K.
{#Task: |Task: |!}{#Predict|Estimate!} the {flashpoint__names__noun} of {SMILES#}.
{#Answer: |A: |!}The {flashpoint__names__noun} is {flashpoint#} {flashpoint__units}.