Ritanserin (R55667; R-55667) is a novel, potent, and long acting antagonist of serotonin-2 (5-HT2) receptor with an IC50 of 0.9 nM. It was developed as an anxiolytic, antidepressant, antiparkinsonian agent, and antihypertensive agent, but was never marketed due to safety issues.

纯度：≥98%

CAS：87051-43-2