Art. -Nr.: HY-14426

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L-655708

4 Cited Publications

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Based on 4 publication(s) in Google Scholar

L-655708 is a potent α5 subunit-selective GABAA receptor inverse agonist (K_i=0.45 nM).

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Reinheit: 99.88%
CAS. Nr.: 130477-52-0
Formel: C₁₈H₁₉N₃O₄
Molecular Weight:341.36

Speicherung:

Powder -20°C, 3 years , 4°C, 2 years ; In solvent -80°C, 2 years , -20°C, 1 year

L-655708 Chemical Structure

CAS. Nr.: 130477-52-0

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Biologische Aktivität
- Beschreibung
- In Vitro
- In Vivo
Chemical Information
Publications (4)
Lösungsmittel & Löslichkeit
- In Vitro
- In Vivo
Reinheit & Dokumentation
Verweise
Help & FAQs
Classifications
Bioz

Biologische Aktivität

Beschreibung

L-655708 is a potent α5 subunit-selective GABAA receptor inverse agonist (K_i=0.45 nM).

In Vitro

L655708 is a potent, selective inverse agonist for the benzodiazepine site of GABAA receptors containing the α5 subunit (Ki = 0.45 nM). Displays 50-100-fold selectivity over GABAA receptors containing α1, α2, α3 orα6 subunits in combination with β3 and γ2. Enhances LTP in a mouse hippocampal slice model and increases spatial learning, without displaying proconvulsant activity.

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

In Vivo

L-655708 at 0.7 mg/kg, administered intraperitoneally, would result in 60-70% occupancy of α5 GABAA receptors with limited binding to α1, α2, and α3 subunit-containing GABAA receptors and no significant off-target behavioral effects, such as sedation and motor impairment.

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Chemical Information

CAS. Nr. 130477-52-0
Appearance Solid
Molecular Weight 341.36
Formel C₁₈H₁₉N₃O₄
Color White to yellow
SMILES

COC1=CC=C(C2=C1)N3C=NC(C(OCC)=O)=C3[C@@]4([H])N(CCC4)C2=O
Versand

Room temperature in continental US; may vary elsewhere.

Speicherung

Powder	-20°C	3 years
	4°C	2 years
In solvent	-80°C	2 years
	-20°C	1 year

Publications (4)

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Br J Anaesth

Sevoflurane alters α5β3GABAA receptor trafficking via calcium/calmodulin-dependent protein kinase II-dependent β3 subunit phosphorylation to produce cognitive impairment in aged mice. [Abstract]

2026 Jan 27:S0007-0912(25)00893-1. PMID: 41605734
Aging Cell

Sevoflurane-induced overexpression of extrasynaptic α5-GABAAR via the RhoA/ROCK2 pathway impairs cognitive function in aged mice. [Abstract]

2024 Jun 2:e14209. PMID: 38825816
CNS Neurosci Ther

Fasudil Alleviates Postoperative Neurocognitive Disorders in Mice by Downregulating the Surface Expression of α5GABAAR in Hippocampus. [Abstract]

2024 Nov;30(11):e70098. PMID: 39491498
CNS Neurosci Ther

Disruption of the GABAergic system contributes to the development of perioperative neurocognitive disorders after anesthesia and surgery in aged mice. [Abstract]

2020 Sep;26(9):913-924. PMID: 32488976

Lösungsmittel & Löslichkeit

In Vitro:

DMSO : 10 mg/mL (29.29 mM; ultrasonic and warming and heat to 60°C; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

View the Complete Stock Solution Preparation Table

Preparing Stock Solutions

View the Complete Stock Solution Preparation Table

Concentration Solvent Mass

1 mg

5 mg

10 mg

Concentration

Solvent

Mass

1 mM

2.9295 mL

14.6473 mL

29.2946 mL

5 mM

0.5859 mL

2.9295 mL

5.8589 mL

10 mM

0.2929 mL

1.4647 mL

2.9295 mL

Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.

Storage method and period of stock solution: -80°C, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.

Molaritätsrechner

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Mass Mass

Konzentration Konzentration

Volumen Volumen

Molecular Weight Molecular Weight

Verdünnungsrechner

Konzentration _{(Stammlösung)} × Volumen _{(Stammlösung)} = Konzentration _{(Ziellösung)} × Volumen _{(Ziellösung)}

Konzentration _{(Stammlösung)} Konzentration _{(Stammlösung)}

Volumen _{(Stammlösung)} Volumen _{(Stammlösung)}

Konzentration _{(Ziellösung)} Konzentration _{(Ziellösung)}

Volumen _{(Ziellösung)} Volumen _{(Ziellösung)}

In Vivo:

Select the appropriate dissolution method based on your experimental animal and administration route.

Stock Solution Working Solution

For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for In Vivo experiments, it is recommended to prepare freshly and use it on the same day.
The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

Protocol 1

Add each solvent one by one: 10% DMSO 40% PEG300 5% Tween-80 45% Saline

Solubility: ≥ 1 mg/mL (2.93 mM); Clear solution

This protocol yields a clear solution of ≥ 1 mg/mL (saturation unknown).

Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (10.0 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.

Protocol 2

Add each solvent one by one: 10% DMSO 90% (20% SBE-β-CD in Saline)

Solubility: ≥ 1 mg/mL (2.93 mM); Clear solution

This protocol yields a clear solution of ≥ 1 mg/mL (saturation unknown).

Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (10.0 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.

Protocol 3

Add each solvent one by one: 10% DMSO 90% Corn Oil

Solubility: ≥ 1 mg/mL (2.93 mM); Clear solution

This protocol yields a clear solution of ≥ 1 mg/mL (saturation unknown). If the continuous dosing period exceeds half a month, please choose this protocol carefully.

Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (10.0 mg/mL) to 900 μL Corn oil, and mix evenly.

In Vivo Dissolution Calculator

Please enter the basic information of animal experiments:

Dosage Dosage
mg/kg
Animal Weight (Per Animal) Animal Weight (Per Animal)
g
Dosing Volume (Per Animal) Dosing Volume (Per Animal)
μL
Number of Animals Number of Animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.

Please enter your animal formula composition:

%
DMSO +

Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
%
+
+
%
Tween-80 + +
%
Saline +

The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).

Working solution concentration: 0.22 mg/mL

Reinheit & Dokumentation

Select Batch:

Reinheit: 99.98%

Assay: 99.98%

ee.: 99.98%

Data Sheet (277 KB)
SDS (251 KB)
- English - EN (251 KB)
- Français - FR (251 KB)
- Deutsch - DE (251 KB)
- Norwegian - NO (251 KB)
- Español - ES (251 KB)
- Swedish - SV (251 KB)
- Italian - IT (251 KB)
- Korean - KR (251 KB)
- Portuguese - PT (251 KB)
COA (2659 KB)
Elemental Analysis Report (2659 KB)
HNMR (2659 KB)
CNMR (2659 KB)
RP-HPLC (2659 KB)
NP-HPLC (2659 KB)
MS (2659 KB)
LCMS (2659 KB)
IR (2659 KB)
GC (2659 KB)
OR (2659 KB)
SDS-PAGE (2659 KB)
SEC-HPLC (2659 KB)
Other Report (2659 KB)
Handling Instructions (2659 KB)

Verweise

[1]. Saab BJ, et al. Short-term memory impairment after isoflurane in mice is prevented by the α5 γ-aminobutyric acid type A receptorinverse agonist L-655708. Anesthesiology. 2010 Nov;113(5):1061-1071. [Content Brief]

Help & FAQs

How should lyophilized recombinant proteins be reconstituted and stored?

1. Before opening the cap, centrifuge the vial at 13000 rpm for 20-30 seconds. This step will ensure that any lyophilized powder that may have adhered to the cap or walls is collected at the bottom of the vial, minimizing the risk of product loss.

Complete Stock Solution Preparation Table

Storage method and period of stock solution: -80°C, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.

Optional Solvent	Concentration Solvent Mass	1 mg	5 mg	10 mg	25 mg
DMSO	1 mM	2.9295 mL	14.6473 mL	29.2946 mL	73.2365 mL
	5 mM	0.5859 mL	2.9295 mL	5.8589 mL	14.6473 mL
	10 mM	0.2929 mL	1.4647 mL	2.9295 mL	7.3236 mL
	15 mM	0.1953 mL	0.9765 mL	1.9530 mL	4.8824 mL
	20 mM	0.1465 mL	0.7324 mL	1.4647 mL	3.6618 mL
	25 mM	0.1172 mL	0.5859 mL	1.1718 mL	2.9295 mL

Keywords

L-655708

4 Cited Publications

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L-655708

Membrane Transporter/Ion Channel Compound Library

Neuronal Signaling Compound Library

Neurotransmitter Receptor Compound Library

Anti-Alzheimer's Disease Compound Library

Anti-Parkinson's Disease Compound Library

Neurodegenerative Disease-related Compound Library

GABA Receptor Compound Library

Membrane Protein-targeted Compound Library

Membrane Receptor-targeted Compound Library

Highly Selective Inhibitors Library

Ion Channel Compound Library

Bioactive Compound Library Max

MCE Bioactive Compound Library

Bioactive Compound Library

High-Throughput Bioactive Compound Library

Publications Citing Use of MedChemExpress (MCE) L-655708

Biologische Aktivität

Chemical Information

Publications (4)

Lösungsmittel & Löslichkeit

Reinheit & Dokumentation

Verweise

Help & FAQs

Complete Stock Solution Preparation Table

L-655708

Membrane Transporter/Ion Channel Compound Library

Neuronal Signaling Compound Library

Neurotransmitter Receptor Compound Library

Anti-Alzheimer's Disease Compound Library

Anti-Parkinson's Disease Compound Library

Neurodegenerative Disease-related Compound Library

GABA Receptor Compound Library

Membrane Protein-targeted Compound Library

Membrane Receptor-targeted Compound Library

Highly Selective Inhibitors Library

Ion Channel Compound Library

Bioactive Compound Library Max

MCE Bioactive Compound Library

Bioactive Compound Library

High-Throughput Bioactive Compound Library

Publications Citing Use of MedChemExpress (MCE) L-655708

Biologische Aktivität

Chemical Information

Publications (4)

Lösungsmittel & Löslichkeit

Reinheit & Dokumentation

Verweise

Help & FAQs

Complete Stock Solution Preparation Table

L-655708 Related Classifications

HY-14426 Related Classifications