Question: How many aromatic rings does this compound have?
Description: The Molecule can be represented with the SMILES CCN1C(=O)CNc2ncc(-c3ccc(-c4nc[nH]n4)nc3C)nc21.
Result: 3
{#Question|Q!}: {quest#}
{#Constraint:|Description:|!} The {#Molecule|Compound|Chemical!} {#has the|can be represented with the!} {SMILES__description} {SMILES#}.
{#Answer|Result|Answer!}: {answ#}
CCN1C(=O)CNc2ncc(-c3ccc(-c4nc[nH]n4)nc3C)nc21
CCN1C(=O)CNc2ncc(-c3ccc(-c4nc[nH]n4)nc3C)nc21
5-ethyl-3-[2-methyl-6-(1H-1,2,4-triazol-3-yl)pyridin-3-yl]-7,8-dihydropyrazino[2,3-b]pyrazin-6-one
How many aromatic rings does this compound have?