Task: Please answer the following question about the molecule with SMILES NC(CO)(CO)CO.O=C(c1ccccc1)c1ccc2n1CCC2C(=O)O.
Request: What is the molecular weight of this compound's parent molecule?
Answer: 255.27
Task: Please answer the following question about the molecule with {SMILES__description} {SMILES#}.
{#Description|Question|Request!}: {quest#}
{#Result|Answer|Completion!}: {answ#}
NC(CO)(CO)CO.O=C(c1ccccc1)c1ccc2n1CCC2C(=O)O
NC(CO)(CO)CO.O=C(c1ccccc1)c1ccc2n1CCC2C(=O)O
2-amino-2-(hydroxymethyl)propane-1,3-diol;5-benzoyl-2,3-dihydro-1H-pyrrolizine-1-carboxylic acid
What is the molecular weight of this compound's parent molecule?