2. Anti-infection
  3. Bacterial
  4. Pidotimod

Pidotimod is an orally active dipeptide immunostimulant with immunomodulatory properties on the adaptive and the innate immune responses. Pidotimod increases macrophage activity and humoral immune functions. Pidotimod can be used for the research of chronic bronchitis, chronic obstructive pulmonary disease (COPD), bronchiectasis, and chronic idiopathic urticaria,et al.

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Pidotimod Chemical Structure

Pidotimod Chemical Structure

CAS No. : 121808-62-6

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

Pidotimod Related Antibodies

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  • Biological Activity

  • Purity & Documentation

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Description

Pidotimod is an orally active dipeptide immunostimulant with immunomodulatory properties on the adaptive and the innate immune responses. Pidotimod increases macrophage activity and humoral immune functions. Pidotimod can be used for the research of chronic bronchitis, chronic obstructive pulmonary disease (COPD), bronchiectasis, and chronic idiopathic urticaria,et al[1][2].

In Vivo

In toxicology study in animals, Pidotimod (oral gavage; 800 mg/kg;12 months) is non-toxic in rats and is non-toxic dogs at 600 mg/kg. Pidotimod is non-teratogenic in rats (600 mg/kg orally or 1000 mg/kg IV) and has no effects on subsequent embryofoetal development in rats (up to 1000 mg/kg/day),it has no perinatal or postnatal toxic effects in rats (600 mg/kg orally)[1].
In ex vivo experiments in mice, Pidotimod (intraperitoneal administration; 200 mg/kg; 5 days) potentiats natural killer (NK) cell activity and produces an increase in the proliferative response to mitogens such as concanavalin A (ConA) and interleukin-2 (IL-2)[2].
Pidotimod (intraperitoneal administration; 10-100 mg/kg) normalizes depletion of peritoneal macrophage numbers, and significantly increases macrophage superoxide anion (O2–) production in methylprednisolone-induced immunosuppressed mice[2].

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

244.27

Formula

C9H12N2O4S
CAS No.
Appearance

Solid

Color

White to off-white

SMILES

O=C([C@H]1N(C([C@H](CC2)NC2=O)=O)CSC1)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 : 100 mg/mL (409.38 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

H2O : 25 mg/mL (102.35 mM; Need ultrasonic)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 4.0938 mL 20.4692 mL 40.9383 mL
5 mM 0.8188 mL 4.0938 mL 8.1877 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.

* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

  • Molarity Calculator

  • Dilution Calculator

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

Mass
=
Concentration
×
Volume
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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 (10.23 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 (10.23 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.

For the following dissolution methods, please prepare the working solution directly. It is recommended to prepare fresh solutions and use them promptly within a short period of time.
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:  PBS

    Solubility: 14.29 mg/mL (58.50 mM); Clear solution; Need ultrasonic and warming and heat to 60°C

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.
Calculation results:
Working solution concentration: mg/mL
This product has good water solubility, please refer to the measured solubility data in water/PBS/Saline for details.
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).
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, 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
H2O / DMSO 1 mM 4.0938 mL 20.4692 mL 40.9383 mL 102.3458 mL
5 mM 0.8188 mL 4.0938 mL 8.1877 mL 20.4692 mL
10 mM 0.4094 mL 2.0469 mL 4.0938 mL 10.2346 mL
15 mM 0.2729 mL 1.3646 mL 2.7292 mL 6.8231 mL
20 mM 0.2047 mL 1.0235 mL 2.0469 mL 5.1173 mL
25 mM 0.1638 mL 0.8188 mL 1.6375 mL 4.0938 mL
30 mM 0.1365 mL 0.6823 mL 1.3646 mL 3.4115 mL
40 mM 0.1023 mL 0.5117 mL 1.0235 mL 2.5586 mL
50 mM 0.0819 mL 0.4094 mL 0.8188 mL 2.0469 mL
60 mM 0.0682 mL 0.3412 mL 0.6823 mL 1.7058 mL
80 mM 0.0512 mL 0.2559 mL 0.5117 mL 1.2793 mL
100 mM 0.0409 mL 0.2047 mL 0.4094 mL 1.0235 mL

* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

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Pidotimod 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:

Pidotimod121808-62-6Bacterialchronic bronchitisobstructive pulmonary diseaseCOPDbronchiectasisidiopathic urticariaInhibitorinhibitorinhibit

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