Task: Answer the following question about the molecule with SMILES O=c1ccc2ccccc2o1.
Request: What is the molecular weight of this compound's parent molecule?
Completion: 146.14
Task: Answer the following question about the molecule with {SMILES__description} {SMILES#}.
{#Description|Question|Request!}: {quest#}
{#Result|Answer|Completion!}: {answ#}
O=c1ccc2ccccc2o1
O=c1ccc2ccccc2o1
chromen-2-one
What is the molecular weight of this compound's parent molecule?
146.14