1. GPCR/G Protein Neuronal Signaling
  2. 5-HT Receptor
  3. AS19

AS19 is a potent, selective 5-HT7 receptor agonist with an IC50 value of 0.83 nM and a Ki of 0.6 nM. AS19 is selective for 5-HT7 over 5-HT1A, 5-HT1B, 5-HT1D, and 5-HT5A receptors (Kis = 89.7 nM, 490 nM, 6.6 nM and 98.5 nM, respectively). AS19 enhances memory consolidation and reverses Scopolamine- or Dizocilpine-induced amnesia.

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

AS19 Chemical Structure

AS19 Chemical Structure

CAS No. : 1000578-26-6

Size Price Stock Quantity
Oil + Solvent
10 mM * 1 mL in DMSO
ready for reconstitution
USD 638 In-stock
Solution
10 mM * 1 mL in DMSO USD 638 In-stock
Oil
5 mg USD 580 In-stock
10 mg USD 930 In-stock
25 mg USD 1860 In-stock
50 mg USD 2980 In-stock
100 mg   Get quote  
200 mg   Get quote  

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Customer Review

Based on 1 publication(s) in Google Scholar

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  • Biological Activity

  • Purity & Documentation

  • References

  • Customer Review

Description

AS19 is a potent, selective 5-HT7 receptor agonist with an IC50 value of 0.83 nM and a Ki of 0.6 nM. AS19 is selective for 5-HT7 over 5-HT1A, 5-HT1B, 5-HT1D, and 5-HT5A receptors (Kis = 89.7 nM, 490 nM, 6.6 nM and 98.5 nM, respectively). AS19 enhances memory consolidation and reverses Scopolamine- or Dizocilpine-induced amnesia[1][2][3].

IC50 & Target[1][3]

Human 5-HT7 Receptor

0.83 nM (IC50)

Human 5-HT7 Receptor

0.6 nM (Ki)

5-HT1A Receptor

89.7 nM (Ki)

5-HT1B Receptor

490 nM (Ki)

5-HT1D Receptor

6.6 nM (Ki)

5-HT5 Receptor

98.5 nM (Ki)

In Vitro

The proliferation of T-cell from parachlorophenylalanine-treated mice is significantly reduced, addition of AS19 (1 μM) completely restores T-cell proliferation after 48 hours[2].

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

In Vivo

AS19 (0.5-10 mg/kg; subcutaneous injection; for 24 hours; male Wistar rats) treatment improves memory consolidation in an autoshaping Pavlovian/instrumental learning task[1].

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

Animal Model: Male Wistar rats (12-week-old) with autoshaping Pavlovian/instrumental learning task[1]
Dosage: 0.5 mg/kg, 1 mg/kg, 5 mg/kg, 10 mg/kg
Administration: Subcutaneous injection; for 24 hours
Result: Enhanced memory formation in an autoshaping Pavlovian/instrumental learning task.
Molecular Weight

283.41

Formula

C18H25N3

CAS No.
Appearance

Oil

Color

Light yellow to brown

SMILES

CC1=C(C2=CC=CC3=C2CC[C@H](N(C)C)C3)C(C)=NN1C

Shipping

Room temperature in continental US; may vary elsewhere.

Storage
Pure form -20°C 3 years
In solvent -80°C 6 months
-20°C 1 month
Solvent & Solubility
In Vitro: 

DMSO : 100 mg/mL (352.85 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 3.5285 mL 17.6423 mL 35.2846 mL
5 mM 0.7057 mL 3.5285 mL 7.0569 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, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

  • 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: ≥ 2.5 mg/mL (8.82 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 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.

    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% (20% SBE-β-CD in Saline)

    Solubility: ≥ 2.5 mg/mL (8.82 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.

    Preparation of 20% SBE-β-CD in Saline (4°C, storage for one week): 2 g SBE-β-CD powder is dissolved in 10 mL Saline, completely dissolve until clear.
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: 99.85%

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, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
DMSO 1 mM 3.5285 mL 17.6423 mL 35.2846 mL 88.2114 mL
5 mM 0.7057 mL 3.5285 mL 7.0569 mL 17.6423 mL
10 mM 0.3528 mL 1.7642 mL 3.5285 mL 8.8211 mL
15 mM 0.2352 mL 1.1762 mL 2.3523 mL 5.8808 mL
20 mM 0.1764 mL 0.8821 mL 1.7642 mL 4.4106 mL
25 mM 0.1411 mL 0.7057 mL 1.4114 mL 3.5285 mL
30 mM 0.1176 mL 0.5881 mL 1.1762 mL 2.9404 mL
40 mM 0.0882 mL 0.4411 mL 0.8821 mL 2.2053 mL
50 mM 0.0706 mL 0.3528 mL 0.7057 mL 1.7642 mL
60 mM 0.0588 mL 0.2940 mL 0.5881 mL 1.4702 mL
80 mM 0.0441 mL 0.2205 mL 0.4411 mL 1.1026 mL
100 mM 0.0353 mL 0.1764 mL 0.3528 mL 0.8821 mL
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AS19 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.

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AS19
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