Q: How many aromatic rings does this compound have?
Constraint: The Compound has the SMILES Nc1nc2[nH]cnc2c(=S)[nH]1.
Answer: 2
{#Question|Q!}: {quest#}
{#Constraint:|Description:|!} The {#Molecule|Compound|Chemical!} {#has the|can be represented with the!} {SMILES__description} {SMILES#}.
{#Answer|Result|Answer!}: {answ#}
Nc1nc2[nH]cnc2c(=S)[nH]1
Nc1nc2[nH]cnc2c(=S)[nH]1
2-azanyl-1,9-dihydropurine-6-thione
How many aromatic rings does this compound have?