5-Hydroxytryptamine maleate salt

Serotonin hydrogen maleate is a monoamine neurotransmitter in the CNS and an endogenous 5-HT receptor agonist. Serotonin hydrogen maleate is also a catechol O-methyltransferase (COMT) inhibitor with a Ki of 44 μM [1] [2].

[1] Tsao D, et al. Serotonin-induced hypersensitivity via inhibition of catechol O-methyltransferase activity. Mol Pain. 2012 Apr 13;8:25. DOI:10.1186/1744-8069-8-25
[2] Shajib MS, et al. Interleukin 13 and serotonin: linking the immune and endocrine systems in murine models of intestinal inflammation. PLoS One. 2013 Aug 28;8(8):e72774. DOI:10.1371/journal.pone.0072774