Q: What is the molecular formula of this compound, including any salt that it may have?
 The Compound has the SMILES Cl.O=c1n(CCCN2CCN(c3cccc(Cl)c3)CC2)nc2ccccn12.
Answer: C19H23Cl2N5O
{#Question|Q!}: {quest#}
{#Constraint:|Description:|!} The {#Molecule|Compound|Chemical!} {#has the|can be represented with the!} {SMILES__description} {SMILES#}.
{#Answer|Result|Answer!}: {answ#}
Cl.O=c1n(CCCN2CCN(c3cccc(Cl)c3)CC2)nc2ccccn12
Cl.O=c1n(CCCN2CCN(c3cccc(Cl)c3)CC2)nc2ccccn12
2-[3-[4-(3-chlorophenyl)piperazin-1-yl]propyl]-[1,2,4]triazolo[4,3-a]pyridin-3-one;hydrochloride
What is the molecular formula of this compound, including any salt that it may have?