Question: Please describe this drug.
Constraint: The Molecule can be represented with the SMILES NC(N)=NCc1cccc([123I])c1.
Answer: Iobenguane I-123 is an iodine (I) 123 labeled aralkylguanidine norepinephrine analogue used as a diagnostic imaging tracer. Iobenguane, structurally related to norepinephrine, functioning as a false substrate of norepinephrine, and is taken up and localized in the granules of pre-synaptic adrenergic neurons. When labeled with I-123, this agent is useful for the imaging of neuroendocrine tissues and tumors.
{#Question|Q!}: {quest#}
{#Constraint:|Description:|!} The {#Molecule|Compound|Chemical!} {#has the|can be represented with the!} {SMILES__description} {SMILES#}.
{#Answer|Result|Answer!}: {answ#}
NC(N)=NCc1cccc([123I])c1
C1=CC(=CC(=C1)[123I])CN=C(N)N
2-[(3-(123I)iodanylphenyl)methyl]guanidine
Please describe this drug.