Q: How many heavy (non-hydrogen) atoms does this compound have?
Constraint: The Chemical has the SMILES Cc1nc([N+](=O)[O-])cn1-c1ccc([N+](=O)[O-])cc1.
Result: 18
{#Question|Q!}: {quest#}
{#Constraint:|Description:|!} The {#Molecule|Compound|Chemical!} {#has the|can be represented with the!} {SMILES__description} {SMILES#}.
{#Answer|Result|Answer!}: {answ#}
Cc1nc([N+](=O)[O-])cn1-c1ccc([N+](=O)[O-])cc1
Cc1nc([N+](=O)[O-])cn1-c1ccc([N+](=O)[O-])cc1
2-methyl-4-nitro-1-(4-nitrophenyl)imidazole
How many heavy (non-hydrogen) atoms does this compound have?