MMAD is a potent tubulin inhibitor, is a toxin payload in antibody drug conjugates (ADCs).

DSP-6952 is a novel potent, selective, orally active 5-HT4 receptor partial agonist with Ki of 50-100 nM for human 5-HT4a/4b/4c.

Ritanserin is a highly effective, relatively selective, long-acting antagonist of 5-HT2 receptor (IC50: 0.9 nM), less active on Histamine H1, Dopamine D2, Adrenergic α1, Adrenergic α2 receptors.