Question: Please describe this drug.
Constraint: The Molecule can be represented with the SMILES O=c1[nH]cnc2nc[nH]c12.
Answer: Hypoxanthine is a metabolite found in or produced by Escherichia coli (strain K12, MG1655).
{#Question|Q!}: {quest#}
{#Constraint:|Description:|!} The {#Molecule|Compound|Chemical!} {#has the|can be represented with the!} {SMILES__description} {SMILES#}.
{#Answer|Result|Answer!}: {answ#}
O=c1[nH]cnc2nc[nH]c12
C1=NC2=C(N1)C(=O)NC=N2
1,7-dihydropurin-6-one
Please describe this drug.