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Catecholamine structure

Structure of a catecholamine (ie, dopamine) showing the component catechol and amine moieties. Dopamine beta-hydroxylase catalyzes the hydroxylation of such compounds at the beta carbon. Image by Yohan, modified by Dr. Douglas Lanska (2016). (Courtesy of Wikimedia Commons. Creative Commons Attribution-Share Alike 3.0 Unported license.)

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