Question: What is the first recorded year of approval for this drug?
 The Chemical has the SMILES CCN(CC)CCOC(=O)c1ccc(N)cc1Cl.Cl.
Answer: 1955
{#Question|Q!}: {quest#}
{#Constraint:|Description:|!} The {#Molecule|Compound|Chemical!} {#has the|can be represented with the!} {SMILES__description} {SMILES#}.
{#Answer|Result|Answer!}: {answ#}
CCN(CC)CCOC(=O)c1ccc(N)cc1Cl.Cl
CCN(CC)CCOC(=O)c1ccc(N)cc1Cl.Cl
2-(diethylamino)ethyl 4-amino-2-chlorobenzoate;hydrochloride
What is the first recorded year of approval for this drug?
1955