Task: Please answer the following question about the molecule with SMILES O=c1[n-]cnc2[nH]ncc12.[Na+].
Question: How many hydrogen bond acceptors does this compound have?
Completion: 4
Task: Please answer the following question about the molecule with {SMILES__description} {SMILES#}.
{#Description|Question|Request!}: {quest#}
{#Result|Answer|Completion!}: {answ#}
O=c1[n-]cnc2[nH]ncc12.[Na+]
O=c1[n-]cnc2[nH]ncc12.[Na+]
sodium;1H-pyrazolo[3,4-d]pyrimidin-5-id-4-one
How many hydrogen bond acceptors does this compound have?