Pimethixene maleate

Pimethixene maleate (CAS No.: 13187-06-9) is a synthetic small molecule classified as a polypharmacological monoaminergic receptor antagonist and is primarily positioned as a pharmacology research tool for neurobiological and receptor signaling studies in biomedical research and early drug discovery workflows, with functional characterization indicating broad antagonistic activity across serotonergic, histaminergic, dopaminergic, muscarinic, and adrenergic systems, including reported interactions with 5-HT1A, 5-HT2A, 5-HT2B, 5-HT2C, 5-HT6, 5-HT7, histamine H1, dopamine D1, dopamine D2, dopamine D4.4, muscarinic M1, muscarinic M2, and adrenergic alpha 1A receptors, and particularly strong effects at several 5-HT2 family members and H1 in receptor binding datasets, supporting its use as a multi target probe to dissect cross talk among serotonin associated neurotransmission pathways, GPCR mediated second messenger signaling, and downstream network level responses relevant to CNS focused mechanism studies; available activity annotations are consistent with receptor engagement spanning submicromolar to low micromolar levels depending on target and assay format, with higher potency evident for selected receptors and weaker activity for others, and the compound is therefore commonly considered in in vitro receptor profiling, pathway deconvolution experiments, phenotypic cell based assays, and in vivo exploratory pharmacology models of neurobehavioral or cough related biology where multi receptor blockade is experimentally informative, while concentrations or doses used in experiments typically depend on specific experimental designs, model sensitivity, and study objectives.