Question: Determine the type of availability for this drug.
 The Chemical can be represented with the SMILES C=CC(N)CCC(=O)O.
Result: prescription only
{#Question|Q!}: {quest#}
{#Constraint:|Description:|!} The {#Molecule|Compound|Chemical!} {#has the|can be represented with the!} {SMILES__description} {SMILES#}.
{#Answer|Result|Answer!}: {answ#}
C=CC(N)CCC(=O)O
C=CC(N)CCC(=O)O
4-aminohex-5-enoicacid
Determine the type of availability for this drug.