Question: Determine if this drug is administered as a racemic mixture, a single stereoisomer, an achiral molecule, or has an unknown chirality.
 The Molecule can be represented with the SMILES O=P(O)(NCCCl)NCCCl.
Answer: An achiral molecule
{#Question|Q!}: {quest#}
{#Constraint:|Description:|!} The {#Molecule|Compound|Chemical!} {#has the|can be represented with the!} {SMILES__description} {SMILES#}.
{#Answer|Result|Answer!}: {answ#}
O=P(O)(NCCCl)NCCCl
O=P(O)(NCCCl)NCCCl
(2-chloroethylamino)-(2-chloroethylamino)phosphinicacid
Determine if this drug is administered as a racemic mixture, a single stereoisomer, an achiral molecule, or has an unknown chirality.