2. GPCR/G Protein Neuronal Signaling
  3. 5-HT Receptor
  4. AVN-492

AVN-492 is a very specific and highly-selective antagonist with picomolar affinity to 5-HT6R (Ki=91 pM).

For research use only. We do not sell to patients.

AVN-492 Chemical Structure

AVN-492 Chemical Structure

CAS No. : 1220646-23-0

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10 mM * 1 mL in DMSO
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Based on 1 publication(s) in Google Scholar

AVN-492 Related Antibodies

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  • Biological Activity

  • Protocol

  • Purity & Documentation

  • References

  • Customer Review

Description

AVN-492 is a very specific and highly-selective antagonist with picomolar affinity to 5-HT6R (Ki=91 pM).

IC50 & Target

5-HT6 Receptor

91 pM (Ki)

In Vitro

The affinity of AVN-492 to bind to 5-HT6R (Ki=91 pM) is more than three orders of magnitude higher than that to bind to the only other target, 5-HT2BR, (Ki=170 nM). Thus, AVN-492 displays great 5-HT6R selectivity against all other serotonin receptor subtypes, and is extremely specific against any other receptors such as adrenergic, GABAergic, dopaminergic, histaminergic, etc[1].

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

AVN-492 Related Antibodies
In Vivo

In rats, the plasma, brain, and CSF concentrations of the PO administered AVN-492 are dose-dependent. The drug concentration curves for the plasma and brain are of hyperbolic shape and at all doses the brain-plasma ratio is near 11%. The drug concentration in CSF, however, is nearly linearly dependent on the dose, reaching 50% of the plasma level at 10mg/kg. In mice, the plasma and brain concentrations of AVN-492, given IV at a dose of 2 mg/kg, decreased with time but at both time points, 15 min and 60 min, the brain/plasma ratio (mean±SEM) is nearly the same, at 13.2±0.7% and 9.0±1.5%, respectively. This indicates that the steady-state concentration gradient of AVN-492 is established by at least 15 min after the drug administration[1].

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

359.45

Formula

C17H21N5O2S
CAS No.
Appearance

Solid

Color

White to light yellow

SMILES

O=S(C1=CC=CC=C1)(C2=C3N(C(C)=C(N(C)C)C(C)=N3)N=C2NC)=O
Shipping

Room temperature in continental US; may vary elsewhere.
Storage
Powder -20°C 3 years
4°C 2 years
In solvent -80°C 2 years
-20°C 1 year
Solvent & Solubility
In Vitro: 

DMSO : 50 mg/mL (139.10 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 2.7820 mL 13.9101 mL 27.8203 mL
5 mM 0.5564 mL 2.7820 mL 5.5641 mL
View the Complete Stock Solution Preparation Table

* 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.

  • Molarity Calculator

  • Dilution Calculator

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

Mass
=
Concentration
×
Volume
×
Molecular Weight *

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start)

C1

×
Volume (start)

V1

=
Concentration (final)

C2

×
Volume (final)

V2

In Vivo:

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

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: ≥ 3.75 mg/mL (10.43 mM); Clear solution

    This protocol yields a clear solution of ≥ 3.75 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (37.5 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.

    Preparation of Saline: Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution.
  • Protocol 2

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

    Solubility: ≥ 3.75 mg/mL (10.43 mM); Clear solution

    This protocol yields a clear solution of ≥ 3.75 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 (37.5 mg/mL) to 900 μL Corn oil, and mix evenly.

In Vivo Dissolution Calculator
Please enter the basic information of animal experiments:

Dosage

mg/kg

Animal weight
(per animal)

g

Dosing volume
(per animal)

μL

Number of animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
%
DMSO +
% 
+
%
Tween-80 +
%
Saline
Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
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).
Calculation results:
Working solution concentration: mg/mL
Method for preparing stock solution: mg drug dissolved in μL  DMSO (Stock solution concentration: mg/mL).
The concentration of the stock solution you require exceeds the measured solubility. The following solution is for reference only. If necessary, please contact MedChemExpress (MCE).
Method for preparing in vivo working solution for animal experiments: Take μL DMSO stock solution, add μL . μL , mix evenly, next add μL Tween 80, mix evenly, then add μL Saline.
 If the continuous dosing period exceeds half a month, please choose this protocol carefully.
Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.
Purity & Documentation

Purity: 99.49%

COA (259 KB) HNMR (177 KB) LCMS (348 KB)

Handling Instructions (2659 KB)
References
Animal Administration
[1]

Mice and Rats[1]
For pharmacokinetic, behavior, and toxicity studies, male Wistar rats (220-242 g), male CD1 mice (24-30 g), male SHK mice (20-25 g), and male Balb/C mice (15-20 g) are used. The pharmacokinetic profiling of AVN-492 is performed on male CD-1 mice and male Wistar rats. Each dose-route group of rodents consist of 3 animals. AVN-492 is administered either intravenously (IV) or orally (PO). At different time points after the drug administration, the animals are quickly euthanized by placing them into CO2 chamber. Blood samples are drawn through a cardiopuncture. In separate experiments, AVN-492 is orally administered to male Wistar rats at doses of 1 mg/kg, 3 mg/kg, and 10 mg/kg (3 independent groups, 3 animals per group). The animals are anesthetized 60 min later with 5% halothane, positioned in a stereotaxic frame, and samples of cerebrospinal fluid (CSF) are taken through 23G needle from the cisterna magna. CSF samples are checked for the absence of blood contamination. After the CSF samples are taken, the blood samples are drawn through a cardiopuncture and the brains are removed, washed immediately with ice-cold saline, and homogenized in a 1:4 brain tissue/water mixture. AVN-492 is extracted from all the samples with acetonitrile and concentrations are determined.

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

Complete Stock Solution Preparation Table

* 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.

Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
DMSO 1 mM 2.7820 mL 13.9101 mL 27.8203 mL 69.5507 mL
5 mM 0.5564 mL 2.7820 mL 5.5641 mL 13.9101 mL
10 mM 0.2782 mL 1.3910 mL 2.7820 mL 6.9551 mL
15 mM 0.1855 mL 0.9273 mL 1.8547 mL 4.6367 mL
20 mM 0.1391 mL 0.6955 mL 1.3910 mL 3.4775 mL
25 mM 0.1113 mL 0.5564 mL 1.1128 mL 2.7820 mL
30 mM 0.0927 mL 0.4637 mL 0.9273 mL 2.3184 mL
40 mM 0.0696 mL 0.3478 mL 0.6955 mL 1.7388 mL
50 mM 0.0556 mL 0.2782 mL 0.5564 mL 1.3910 mL
60 mM 0.0464 mL 0.2318 mL 0.4637 mL 1.1592 mL
80 mM 0.0348 mL 0.1739 mL 0.3478 mL 0.8694 mL
100 mM 0.0278 mL 0.1391 mL 0.2782 mL 0.6955 mL
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AVN-492 Related Classifications

Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

Keywords:

AVN-4921220646-23-0AVN492AVN 4925-HT ReceptorSerotonin Receptor5-hydroxytryptamine ReceptorInhibitorinhibitorinhibit

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