In this task, you are given a sentence. You are expected to recognize the name of any form of chemical substances. Although there might be several correct answers, you need to write one of them.

[Q]: Use of the norepinephrine transporter as a reporter gene for non-invasive imaging of genetically modified cells.
[A]: norepinephrine


[Q]: Loss of alpha 2-macroglobulin and epidermal growth factor surface binding induced by phenothiazines and naphthalene sulfonamides.
[A]: phenothiazines


[Q]: Serotonin transporter gene regulatory region polymorphism (5-HTTLPR), [3H]paroxetine binding in healthy control subjects and alcohol-dependent patients and their relationships to impulsivity.
[A]:
[3H]paroxetine


