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

Tandospirone  (Synonyms: SM-3997)

Cat. No.: HY-14558 Purity: 99.41%
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Tandospirone (SM-3997) is a potent and selective 5-HT1A receptor partial agonist, with a Ki of 27 nM. Tandospirone has anxiolytic and antidepressant activities. Tandospirone can be used for the research of the central nervous system disorders and the underlying mechanisms.

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

Tandospirone Chemical Structure

Tandospirone Chemical Structure

CAS No. : 87760-53-0

Size Price Stock Quantity
Solid + Solvent (Highly Recommended)
10 mM * 1 mL in DMSO
ready for reconstitution
 USD 66 In-stock
Solution
10 mM * 1 mL in DMSO USD 66 In-stock
Solid
5 mg USD 60 In-stock
10 mg USD 95 In-stock
25 mg USD 190 In-stock
50 mg USD 300 In-stock
100 mg USD 480 In-stock
200 mg   Get quote  
500 mg   Get quote  

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Customer Review

Based on 2 publication(s) in Google Scholar

Other Forms of Tandospirone:

Tandospirone Related Antibodies

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  • Biological Activity

  • Purity & Documentation

  • References

  • Customer Review

Description

Tandospirone (SM-3997) is a potent and selective 5-HT1A receptor partial agonist, with a Ki of 27 nM. Tandospirone has anxiolytic and antidepressant activities. Tandospirone can be used for the research of the central nervous system disorders and the underlying mechanisms[1][2][3].

IC50 & Target[1]

5-HT1A Receptor

27 nM (Ki)

In Vitro

Tandospirone is approximately two to three orders of magnitude less potent at 5-HT2, 5-HT1C, α1-adrenergic, α2-adrenergic and dopamine D1 and D2 receptors (Ki values ranging from 1300 to 41000 nM) than 5-HT1A[1].
Tandospirone is essentially inactive at 5-HT1B receptors; 5-HT uptake sites; beta-adrenergic, muscarinic cholinergic, and benzodiazepine receptors[1].
Tandospirone activates postsynaptic 5-HT1A receptor coupled with G-protein (Gi/o), resulting in inhibition of protein kinase A (PKA)-mediated protein phosphorylation and neuronal activity[1].

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

Tandospirone Related Antibodies
In Vivo

Tandospirone (10-80 mg/kg; i.p.) inhibits freezing behavior in the conditioned fear stress-induced freezing behavior rat model[3].
Tandospirone exhibits the anxiolytic effect dependent on the plasma concentration of at 0.5 hours but not 4 hours[3].

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

Animal Model: Seven-week-old male Sprague-Dawley rats (260-300 g), conditioned fear stress-induced freezing behavior rat model[3]
Dosage: 10 mg/kg, 20 mg/kg, 40 mg/kg, 80 mg/kg
Administration: Intraperitoneal injection
Result: Inhibited freezing behavior in a dose-dependent manner.
Clinical Trial
Molecular Weight

383.49

Formula

C21H29N5O2
CAS No.
Appearance

Solid

Color

White to off-white

SMILES

O=C1[C@]2([H])[C@]([C@H]3CC[C@@H]2C3)([H])C(N1CCCCN(CC4)CCN4C5=NC=CC=N5)=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 : 16.67 mg/mL (43.47 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

H2O : < 0.1 mg/mL (insoluble)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 2.6076 mL 13.0381 mL 26.0763 mL
5 mM 0.5215 mL 2.6076 mL 5.2153 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.

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  • 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 (6.52 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 (6.52 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: 99.41%

COA (249 KB) HNMR (233 KB) LCMS (96 KB)

Handling Instructions (2659 KB)
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 2.6076 mL 13.0381 mL 26.0763 mL 65.1907 mL
5 mM 0.5215 mL 2.6076 mL 5.2153 mL 13.0381 mL
10 mM 0.2608 mL 1.3038 mL 2.6076 mL 6.5191 mL
15 mM 0.1738 mL 0.8692 mL 1.7384 mL 4.3460 mL
20 mM 0.1304 mL 0.6519 mL 1.3038 mL 3.2595 mL
25 mM 0.1043 mL 0.5215 mL 1.0431 mL 2.6076 mL
30 mM 0.0869 mL 0.4346 mL 0.8692 mL 2.1730 mL
40 mM 0.0652 mL 0.3260 mL 0.6519 mL 1.6298 mL
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Tandospirone 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:

Tandospirone87760-53-0SM-3997SM3997SM 39975-HT ReceptorSerotonin Receptor5-hydroxytryptamine Receptor5-hydroxytryptamineanxietydisorderdepressionParkinson's diseaseschizophreniacentralnervoussystemCNSdisordersInhibitorinhibitorinhibit

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