Sigma receptor

4-IBP is a selective ς1 agonist with a high level of affinity for the ς1 receptor (Ki = 1.7 nM) and a moderate affinity for the ς2 receptor (Ki = 25.2 nM) .

Anavex2-73 is a muscarinic/moderate sigma1 receptor agonist that alleviated the scopolamine- and dizocilpine-induced learning impairments. CAS: 195615-83-9 (Free base) 195615-84-0 (HCl)

Ditolylguanidine (1,3-Di-o-tolylguanidine) is an agonist of sigma receptor (??1/??2 receptor).