Q: How many heavy (non-hydrogen) atoms does this compound have?
 The Compound has the SMILES CC1(CCCc2cc(=O)oc3[nH]c(=O)[nH]c(=O)c23)CC1.
Result: 20
{#Question|Q!}: {quest#}
{#Constraint:|Description:|!} The {#Molecule|Compound|Chemical!} {#has the|can be represented with the!} {SMILES__description} {SMILES#}.
{#Answer|Result|Answer!}: {answ#}
CC1(CCCc2cc(=O)oc3[nH]c(=O)[nH]c(=O)c23)CC1
CC1(CCCc2cc(=O)oc3[nH]c(=O)[nH]c(=O)c23)CC1
5-[3-(1-methylcyclopropyl)propyl]-1H-pyrano[2,3-d]pyrimidine-2,4,7-trione
How many heavy (non-hydrogen) atoms does this compound have?
20