| Bioactivity | Repinotan (BAY x 3702 free base) is a potent, selective, brain-penetrant and orally active 5-HT1A receptor agonist, with Ki values of 0.19 nM (calf hippocampus), 0.25 nM (rat and human cortex), and 0.59 nM (rat hippocampus). Repinotan has a weak affinity for other related receptors. Repinotan has pronounced neuroprotective effects[1]. |
| Invitro | Repinotan binds with lower affinity to 5-HT7 (Ki = 6 nM), α1- and α2 adrenergic (Ki = 6 nM and 7 nM, respectively), 5-HT1D (36 nM), dopamine D2 and D4 (48 nM and 91 nM, respectively), σ sites (176 nM) and 5-HT2C (310 nM) receptors[1]. Exposure to repinotan protects rat cortical and hippocampal neurons in cultures from apoptosis induced by 25 nM Staurosporine. After Staurosporine-induced apoptosis, Repinotan, at 50 pM to 1 μM, reduces the release of lactate dehydrogenase, DNA fragmentation, and apoptotic body formation in a concentration-dependent manner[1]. |
| In Vivo | Repinotan (1-100 μg/kg) causes strong, dose-dependent infarct reductions in permanent middle cerebral artery occlusion, transient middle cerebral artery occlusion, and traumatic brain injury paradigms[1].The half-life of Repinotan in plasma is relatively short (t1/2 = 0.6 h in rat; 0.4 h in rhesus monkeys), and Repinotan is extensively metabolized[1]. |
| Name | Repinotan |
| CAS | 144980-29-0 |
| Formula | C21H24N2O4S |
| Molar Mass | 400.49 |
| Transport | Room temperature in continental US; may vary elsewhere. |
| Storage | Please store the product under the recommended conditions in the Certificate of Analysis. |
| Reference | [1]. A C Berends, et al. A review of the neuroprotective properties of the 5-HT1A receptor agonist repinotan HCl (BAYx3702) in ischemic stroke. CNS Drug Rev. Winter 2005;11(4):379-402. |