Question: Determine if this drug is administered as a racemic mixture, a single stereoisomer, an achiral molecule, or has an unknown chirality.
Description: The Molecule has the SMILES Nc1nc2[nH]cnc2c(=S)[nH]1.
Result: An achiral molecule
{#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
Determine if this drug is administered as a racemic mixture, a single stereoisomer, an achiral molecule, or has an unknown chirality.