Q: What is the first recorded year of approval for this drug?
Constraint: The Compound can be represented with the SMILES CC(C(=O)[O-])c1cccc(Oc2ccccc2)c1.CC(C(=O)[O-])c1cccc(Oc2ccccc2)c1.O.O.[Ca+2].
Answer: 1976
{#Question|Q!}: {quest#}
{#Constraint:|Description:|!} The {#Molecule|Compound|Chemical!} {#has the|can be represented with the!} {SMILES__description} {SMILES#}.
{#Answer|Result|Answer!}: {answ#}
CC(C(=O)[O-])c1cccc(Oc2ccccc2)c1.CC(C(=O)[O-])c1cccc(Oc2ccccc2)c1.O.O.[Ca+2]
CC(C(=O)[O-])c1cccc(Oc2ccccc2)c1.CC(C(=O)[O-])c1cccc(Oc2ccccc2)c1.O.O.[Ca+2]
calcium;2-(3-phenoxyphenyl)propanoate;dihydrate
What is the first recorded year of approval for this drug?