Task: Answer the following question about the molecule with SMILES O=C([O-])CC(O)(CC(=O)[O-])C(=O)[O-].O=C([O-])CC(O)(CC(=O)[O-])C(=O)[O-].[Mg+2].[Mg+2].[Mg+2].
Question: What is the molecular weight of this compound's parent molecule?
Completion: 451.11
Task: Answer the following question about the molecule with {SMILES__description} {SMILES#}.
{#Description|Question|Request!}: {quest#}
{#Result|Answer|Completion!}: {answ#}
O=C([O-])CC(O)(CC(=O)[O-])C(=O)[O-].O=C([O-])CC(O)(CC(=O)[O-])C(=O)[O-].[Mg+2].[Mg+2].[Mg+2]
O=C([O-])CC(O)(CC(=O)[O-])C(=O)[O-].O=C([O-])CC(O)(CC(=O)[O-])C(=O)[O-].[Mg+2].[Mg+2].[Mg+2]
trimagnesium;2-hydroxypropane-1,2,3-tricarboxylate
What is the molecular weight of this compound's parent molecule?