1. Anti-infection
  2. Parasite
  3. PK 11195

PK 11195  (Synonyms: RP 52028)

Cat. No.: HY-19567 Purity: 99.05%
COA Handling Instructions

PK 11195 (RP 52028) is a ligand of translocator protein (TSPO), which targets Leishmania chemotherapy, with IC50s of 14.2 μM, 8.2 μM, 3.5 μM for L. amazonensis, L. major and L. braziliensis, respectively.

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

PK 11195 Chemical Structure

PK 11195 Chemical Structure

CAS No. : 85532-75-8

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Solid + Solvent
10 mM * 1 mL in DMSO
ready for reconstitution
USD 61 In-stock
10 mM * 1 mL in DMSO USD 61 In-stock
5 mg USD 55 In-stock
10 mg USD 75 In-stock
50 mg USD 250 In-stock
100 mg USD 450 In-stock
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This product is a controlled substance and not for sale in your territory.

Customer Review

Based on 1 publication(s) in Google Scholar

Top Publications Citing Use of Products

1 Publications Citing Use of MCE PK 11195

  • Biological Activity

  • Purity & Documentation

  • References

  • Customer Review


PK 11195 (RP 52028) is a ligand of translocator protein (TSPO), which targets Leishmania chemotherapy, with IC50s of 14.2 μM, 8.2 μM, 3.5 μM for L. amazonensis, L. major and L. braziliensis, respectively.

IC50 & Target

IC50: 14.2 μM (L. amazonensis), 8.2 μM (L. major), 3.5 μM (L. braziliensis)[1].

In Vitro

Median IC50 values for PK 11195 are 14.2 μM for L. amazonensis, 8.2 μM for L. major, and 3.5 μM for L. braziliensis. The selective index value for L. amazonensis is 13.7, indicating the safety of PK 11195 for future testing in mammals. Time-and dose-dependent reductions in the percentage of infected macrophages, the number of parasites per infected macrophage, and the number of viable intracellular parasites are observed. Electron microscopy reveals some morphological alterations suggestive of autophagy. Interestingly, MCP-1 and superoxide levels are reduced in L. amazonensis-infected macrophages treated with PK 11195[1].

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

Molecular Weight









Room temperature in continental US; may vary elsewhere.

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

DMSO : 25 mg/mL (70.85 mM; Need ultrasonic)

Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 2.8340 mL 14.1699 mL 28.3399 mL
5 mM 0.5668 mL 2.8340 mL 5.6680 mL
10 mM 0.2834 mL 1.4170 mL 2.8340 mL
*Please refer to the solubility information to select the appropriate solvent.
In Vivo:
  • 1.

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

    Solubility: ≥ 2.08 mg/mL (5.89 mM); Clear solution

  • 2.

    Add each solvent one by one:  10% DMSO    90% (20% SBE-β-CD in Saline)

    Solubility: ≥ 2.08 mg/mL (5.89 mM); Clear solution

*All of the co-solvents are available by MedChemExpress (MCE).
Purity & Documentation

Purity: 99.05%

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PK 11195 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.

  • Molarity Calculator

  • Dilution Calculator

The molarity calculator equation

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

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The dilution calculator equation

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

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
× = ×
C1   V1   C2   V2

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