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

Velusetrag (TD-5108) is an orally active, potent and selective agonist of serotonin 5-HT4 receptor (5-HT4R), with a pKi of 7.7. Velusetrag exhibits no affinity (Ki>10 μM) for 5-HT2A and 5-HT2B receptors. Velusetrag can be used for the research of gastrointestinal diseases and Parkinson's disease.

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

Velusetrag Chemical Structure

Velusetrag Chemical Structure

CAS No. : 866933-46-2

Size Price Stock Quantity
Solid + Solvent
10 mM * 1 mL in DMSO
ready for reconstitution
USD 385 In-stock
Solution
10 mM * 1 mL in DMSO USD 385 In-stock
Solid
5 mg USD 350 In-stock
10 mg USD 580 In-stock
25 mg USD 1100 In-stock
50 mg USD 1800 In-stock
100 mg   Get quote  
200 mg   Get quote  

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Customer Review

Based on 1 publication(s) in Google Scholar

Other Forms of Velusetrag:

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  • Biological Activity

  • Purity & Documentation

  • References

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Description

Velusetrag (TD-5108) is an orally active, potent and selective agonist of serotonin 5-HT4 receptor (5-HT4R), with a pKi of 7.7. Velusetrag exhibits no affinity (Ki>10 μM) for 5-HT2A and 5-HT2B receptors. Velusetrag can be used for the research of gastrointestinal diseases and Parkinson's disease[1][2][3][4][5].

IC50 & Target[1]

5-HT4 Receptor

7.7 (pKi)

In Vitro

Velusetrag (10 pM-100 μM) concentration-dependently increases the cAMP in HEK-293 cells stably transfected with the h5-HT4(c) receptor, with a pEC50 of 8.3[1].
Velusetrag (100 pM-1 μM) produces concentration-dependent contraction of the guinea pig colonic longitudinal muscle/myenteric plexus (LMMP), with a pEC50 of 7.9[1].
Velusetrag (0.001-10 μM) produces a concentration-dependent relaxation of the carbachol (3 μM)-precontracted rat esophagus, with a pEC50 of 7.9[1].

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

In Vivo

Velusetrag (3 mg/kg; a single i.p.) significantly improves the facilitation of contextual fear extinction in PD mice[3].
Velusetrag (3 mg/kg; a single i.p.) increases hippocampal cAMP levels in 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-treated mice[3].
Velusetrag (0.003-3 mg/kg; a single s.c.) increases colonic transit in a dose-dependent manner and reduces the time taken for excretion of the dye in guinea pigs[2].
Velusetrag (0.003-1 mg/kg; a single i.v.) dose-dependently increases inter-crystal distance, consistent with relaxation of the oesophagus in rats[2].

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

Animal Model: Male C57BL/6 mice (7-8 weeks old) were injected with MPTP[3]
Dosage: 3 mg/kg
Administration: A single i.p.
Result: Improved facilitation of contextual fear extinction.
Did not improve the impaired rotarod performance in PD mice.
Clinical Trial
Molecular Weight

504.64

Formula

C25H36N4O5S

CAS No.
Appearance

Solid

Color

White to off-white

SMILES

O=C(C1=CC2=C(N(C(C)C)C1=O)C=CC=C2)N[C@@H]3C[C@@H](N4C[C@@H](O)CN(C)S(=O)(C)=O)CC[C@@H]4C3

Shipping

Room temperature in continental US; may vary elsewhere.

Storage
Powder -20°C 3 years
4°C 2 years
In solvent -80°C 6 months
-20°C 1 month
Solvent & Solubility
In Vitro: 

DMSO : 100 mg/mL (198.16 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 1.9816 mL 9.9081 mL 19.8161 mL
5 mM 0.3963 mL 1.9816 mL 3.9632 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)

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

This equation is commonly abbreviated as: C1V1 = C2V2

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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    90% Corn Oil

    Solubility: ≥ 5.75 mg/mL (11.39 mM); Clear solution

    This protocol yields a clear solution of ≥ 5.75 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 (57.5 mg/mL) to 900 μL Corn oil, and mix evenly.

  • Protocol 2

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

    Solubility: ≥ 5.48 mg/mL (10.86 mM); Clear solution

    This protocol yields a clear solution of ≥ 5.48 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (54.8 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.
In Vivo Dissolution Calculator
Please enter the basic information of animal experiments:

Dosage

mg/kg

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(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
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 1.9816 mL 9.9081 mL 19.8161 mL 49.5403 mL
5 mM 0.3963 mL 1.9816 mL 3.9632 mL 9.9081 mL
10 mM 0.1982 mL 0.9908 mL 1.9816 mL 4.9540 mL
15 mM 0.1321 mL 0.6605 mL 1.3211 mL 3.3027 mL
20 mM 0.0991 mL 0.4954 mL 0.9908 mL 2.4770 mL
25 mM 0.0793 mL 0.3963 mL 0.7926 mL 1.9816 mL
30 mM 0.0661 mL 0.3303 mL 0.6605 mL 1.6513 mL
40 mM 0.0495 mL 0.2477 mL 0.4954 mL 1.2385 mL
50 mM 0.0396 mL 0.1982 mL 0.3963 mL 0.9908 mL
60 mM 0.0330 mL 0.1651 mL 0.3303 mL 0.8257 mL
80 mM 0.0248 mL 0.1239 mL 0.2477 mL 0.6193 mL
100 mM 0.0198 mL 0.0991 mL 0.1982 mL 0.4954 mL
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Velusetrag 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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