Q: What is the first recorded year of approval for this drug?
 The Chemical has the SMILES CN1CCN(CCCN2c3ccccc3Sc3ccc(Cl)cc32)CC1.O=S(=O)(O)CCS(=O)(=O)O.
Answer: 1957
{#Question|Q!}: {quest#}
{#Constraint:|Description:|!} The {#Molecule|Compound|Chemical!} {#has the|can be represented with the!} {SMILES__description} {SMILES#}.
{#Answer|Result|Answer!}: {answ#}
CN1CCN(CCCN2c3ccccc3Sc3ccc(Cl)cc32)CC1.O=S(=O)(O)CCS(=O)(=O)O
CN1CCN(CCCN2c3ccccc3Sc3ccc(Cl)cc32)CC1.O=S(=O)(O)CCS(=O)(=O)O
2-chloro-10-[3-(4-methylpiperazin-1-yl)propyl]phenothiazine;ethane-1,2-disulfonic acid
What is the first recorded year of approval for this drug?
1957