Task: Answer the following question about the molecule with SMILES NC[C@H](CC(=O)O)c1ccc(Cl)cc1.
Request: Determine if this drug is administered as a racemic mixture, a single stereoisomer, an achiral molecule, or has an unknown chirality.
Completion: Single stereoisomer
Task: Answer the following question about the molecule with {SMILES__description} {SMILES#}.
{#Description|Question|Request!}: {quest#}
{#Result|Answer|Completion!}: {answ#}
NC[C@H](CC(=O)O)c1ccc(Cl)cc1
NC[C@H](CC(=O)O)c1ccc(Cl)cc1
(3R)-4-amino-3-(4-chlorophenyl)butanoic acid
Determine if this drug is administered as a racemic mixture, a single stereoisomer, an achiral molecule, or has an unknown chirality.