兒茶酚胺（英語：Catecholamine）是具有兒茶酚核的（苯乙）胺類化合物的統稱，是由腎上腺產生的一類應激擬交感「鬥或逃」（Fight or Flight）激素。最重要的兒茶酚胺是腎上腺素（Epinephrine）、去甲腎上腺素（正腎上腺素）和多巴胺（Dopamine），均是從苯丙氨酸和酪氨酸合成。去甲腎上腺素在中樞神經系統內分布廣泛，含量較多，而腎上腺素含量則較少。多巴胺主要集中在錐體外系部位，也是一種神經介質。它們是重要的典型的腎上腺素受體激動劑。不少精神興奮劑也是兒茶酚胺的類似物。
^Lindemann L, Hoener MC. A renaissance in trace amines inspired by a novel GPCR family. Trends Pharmacol. Sci. 2005-05, 26 (5): 274–281. PMID 15860375. doi:10.1016/j.tips.2005.03.007.
^Wang X, Li J, Dong G, Yue J. The endogenous substrates of brain CYP2D. Eur. J. Pharmacol. 2014-02-05, 724: 211–218. PMID 24374199. doi:10.1016/j.ejphar.2013.12.025. The highest level of brain CYP2D activity was found in the substantia nigra ... The in vitro and in vivo studies have shown the contribution of the alternative CYP2D-mediated dopamine synthesis to the concentration of this neurotransmitter although the classic biosynthetic route to dopamine from tyrosine is active. ... Tyramine levels are especially high in the basal ganglia and limbic system, which are thought to be related to individual behavior and emotion (Yu et al., 2003c). ... Rat CYP2D isoforms (2D2/2D4/2D18) are less efficient than human CYP2D6 for the generation of dopamine from p-tyramine. The Km values of the CYP2D isoforms are as follows: CYP2D6 (87–121 μm) ≈ CYP2D2 ≈ CYP2D18 > CYP2D4 (256 μm) for m-tyramine and CYP2D4 (433 μm) > CYP2D2 ≈ CYP2D6 > CYP2D18 (688 μm) for p-tyramine
†References for all endogenous human TAAR1 ligands are provided at List of trace amines
‡References for synthetic TAAR1 agonists can be found at TAAR1（英语：TAAR1） or in the associated compound articles. For TAAR2 and TAAR5 agonists and inverse agonists, see TAAR for references.
鄰苯二酚（又稱為兒茶酚）
