| Bioactivity | Basmisanil (RG1662) is a highly selective orally active α subunit-containing GABAA receptors (GABAAα5) negative allosteric modulator (NAMs). Basmisanil can inhibit GABAA-α5 with a Ki value of 5 nM and IC50 value of 8 nM, respectively. Basmisanil can be used for the research of multiple cognitive and psychiatric disorders[1]. | ||||||||||||
| Target | IC50: 8 nM (GABAAα5)Ki: 5 nM (GABAAα5); 1031 nM (GABAAα1); 458 nM (GABAAα2); 510 nM (GABAAα3) | ||||||||||||
| Invitro | Basmisanil (0.1 nM-100 μM) has high affinity for bounding to recombinant human GABAA-α5 receptors with a Ki value of 5 nM and more than 90-fold selectivity versus α1 (Ki = 1031 nM), α2 (Ki = 458 nM), and α3 (Ki = 510 nM) subunit-containing receptors[1].Basmisanil (1 nM-1 μM) shows a highly selective inhibition of GABAA-α5 with a IC50 value of 8 nM[1].Basmisanil (1 μM) inhibits GABA-induced currents at GABAA-α5 yet had little or no effect at the other receptor subtypes[1]. | ||||||||||||
| In Vivo | Basmisanil (3-100 mg/kg, p.o.) occupies GABAA-α receptor in dose-dependent in rat brain[1].Basmisanil (3-600 mg/kg p.o.) improves cognition in rats and non.human primates and not show anxiogenic or proconvulsant effects[1]. Animal Model: | ||||||||||||
| Name | Basmisanil | ||||||||||||
| CAS | 1159600-41-5 | ||||||||||||
| Formula | C21H20FN3O5S | ||||||||||||
| Molar Mass | 445.46 | ||||||||||||
| Appearance | Solid | ||||||||||||
| Transport | Room temperature in continental US; may vary elsewhere. | ||||||||||||
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| Reference | [1]. Joerg F Hipp, et al. Basmisanil, a highly selective GABA A-α5 negative allosteric modulator: preclinical pharmacology and demonstration of functional target engagement in man. Sci Rep. 2021 Apr 8;11(1):7700. |