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PK11195

Alias: PK-11195 PK 11195PK11195
Cat No.:V9395 Purity: ≥98%
PK 11195 (RP 52028) is a ligand of TSPO that can target leishmaniasis.
PK11195
PK11195 Chemical Structure CAS No.: 85532-75-8
Product category: New1
This product is for research use only, not for human use. We do not sell to patients.
Size Price Stock Qty
5mg
10mg
50mg
100mg
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Product Description
PK 11195 (RP 52028) is a ligand of TSPO that can target leishmaniasis. Its IC50s against L. amazonensis, L. major and L. braziliensis are 14.2 μM, 8.2 μM and 3.5 μM respectively.
Biological Activity I Assay Protocols (From Reference)
ln Vitro
For PK 11195, the median IC50 values were 14.2 μM for L. amazonensis, L at 8.2 μM. major, and L at 3.5 μM. braziliensis. The value of L's selectivity index. amazonensis was 13.7, suggesting that PK 11195 is safe for use in upcoming tests on mammals. There were observed time- and dose-dependent decreases in the number of live intracellular parasites, the number of parasites per infected macrophage, and the proportion of infected macrophages. Several morphological alterations suggestive of autophagy were detected by electron microscopy. It's interesting to note that L had lower MCP-1 and superoxide levels. macrophages infected with Amazonensis and treated with PK 11195 [1].
References
[1]. Guedes CES, et al. In vitro evaluation of the anti-leishmanial activity and toxicity of PK-11195. Mem Inst Oswaldo Cruz. 2018 Feb 5;113(4):e170345.
Additional Infomation
PK-11195 is a monocarboxylic acid amide obtained by formal condensation of the carboxy group of 1-(2-chlorophenyl)isoquinoline-3-carboxylic acid with the amino group of sec-butylmethylamine It has a role as an antineoplastic agent. It is a member of isoquinolines, a monocarboxylic acid amide, an aromatic amide and a member of monochlorobenzenes.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C21H21CLN2O
Molecular Weight
352.862
Exact Mass
352.134
CAS #
85532-75-8
PubChem CID
1345
Appearance
Off-white to light brown solid powder
Density
1.2±0.1 g/cm3
Boiling Point
511.7±45.0 °C at 760 mmHg
Melting Point
74-75
Flash Point
263.3±28.7 °C
Vapour Pressure
0.0±1.3 mmHg at 25°C
Index of Refraction
1.611
LogP
4.58
Hydrogen Bond Donor Count
0
Hydrogen Bond Acceptor Count
2
Rotatable Bond Count
4
Heavy Atom Count
25
Complexity
457
Defined Atom Stereocenter Count
0
SMILES
O=C(N(C(CC)C)C)C1C=C2C(C=CC=C2)=C(C2C(Cl)=CC=CC=2)N=1
InChi Key
RAVIZVQZGXBOQO-UHFFFAOYSA-N
InChi Code
InChI=1S/C21H21ClN2O/c1-4-14(2)24(3)21(25)19-13-15-9-5-6-10-16(15)20(23-19)17-11-7-8-12-18(17)22/h5-14H,4H2,1-3H3
Chemical Name
N-(sec-butyl)-1-(2-chlorophenyl)-N-methylisoquinoline-3-carboxamide
Synonyms
PK-11195 PK 11195PK11195
HS Tariff Code
2934.99.9001
Storage

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Shipping Condition
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
Solubility Data
Solubility (In Vitro)
DMSO : ~25 mg/mL (~70.85 mM)
Solubility (In Vivo)
Solubility in Formulation 1: ≥ 2.08 mg/mL (5.89 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 20.8 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL.
Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution.

Solubility in Formulation 2: ≥ 2.08 mg/mL (5.89 mM) (saturation unknown) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 20.8 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C,1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 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

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.

Calculator

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An example of molarity calculation using the molarity calculator is shown below:
What is the mass of compound required to make a 10 mM stock solution in 5 ml of DMSO given that the molecular weight of the compound is 350.26 g/mol?
  • Enter 350.26 in the Molecular Weight (MW) box
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  • The answer of 17.513 mg appears in the Mass box. In a similar way, you may calculate the volume and concentration.

Dilution Calculator allows you to calculate how to dilute a stock solution of known concentrations. For example, you may Enter C1, C2 & V2 to calculate V1, as detailed below:

What volume of a given 10 mM stock solution is required to make 25 ml of a 25 μM solution?
Using the equation C1V1 = C2V2, where C1=10 mM, C2=25 μM, V2=25 ml and V1 is the unknown:
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  • The answer of 62.5 μL (0.1 ml) appears in the Volume (Start) box
g/mol

Molecular Weight Calculator allows you to calculate the molar mass and elemental composition of a compound, as detailed below:

Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
Instructions to calculate molar mass (molecular weight) of a chemical compound:
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Definitions of molecular mass, molecular weight, molar mass and molar weight:
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Reconstitution Calculator allows you to calculate the volume of solvent required to reconstitute your vial.

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In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
Step 2: Enter in vivo formulation (This is only a calculator, not the exact formulation for a specific product. Please contact us first if there is no in vivo formulation in the solubility section.)
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Calculation results

Working concentration mg/mL;

Method for preparing DMSO stock solution mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.

Method for preparing in vivo formulation:Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.

(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
             (2) Be sure to add the solvent(s) in order.

Clinical Trial Information
NCT Number Recruitment interventions Conditions Sponsor/Collaborators Start Date Phases
NCT00205595 UNKNOWN STATUS Device: Positron Emission Tomography Normal Aging Amsterdam UMC, location VUmc 2001-02 Phase 1
NCT02092883 COMPLETED Drug: ACTH Infantile Spasms Wayne State University 2013-03 Phase 4
NCT02207075 COMPLETED Drug: [C11]PK-1195 PET scan Secondary Progressive Multiple Sclerosis Weill Medical College of Cornell University 2014-07
NCT04239820 ACTIVE, NOT RECRUITING Radiation: Imaging Multiple Sclerosis Turku University Hospital 2020-01-10
NCT00205582 UNKNOWN STATUS Device: Positron Emission Tomography Traumatic Brain Injury Amsterdam UMC, location VUmc 2001-05 Phase 1
Biological Data
  • inhibition of the viability of axenic Leishmania promastigotes and reduction of parasite load by PK11195. (A) CC50 of macrophages and IC50 of log-phase promastigotes of L. amazonensis, L. braziliensis, and L. major treated with PK11195. Lines represent the mean of four to six independent experiments (symbols) performed in triplicate. Differences between treated and control cells were considered significant when p < 0.05 (Student's t test). (B, C) Drug effects at early stages after infection. Infected macrophages were treated with 400, 200, 100, 50, or 25 μM of PK11195 for different periods of time. The percentage of infected macrophages (B) and the number of parasites per infected macrophage (C) were estimated by cell counting using light microscopy. Lines represent the median and floating bars quartiles (25% and 75%) of four independent experiments performed in quintuplicate (Kruskal-Wallis Test, Dunn's multiple comparison test, *p < 0.05, **p < 0.01).[1].Guedes CES, et al. In vitro evaluation of the anti-leishmanial activity and toxicity of PK-11195. Mem Inst Oswaldo Cruz. 2018 Feb 5;113(4):e170345.
  • effect of PK11195 on intracellular Leishmania amazonensis parasites in infected macrophages. (A) Percentage of infected macrophage. Infected macrophage were treated with varying concentrations of PK11195 for 48 h in order to calculate intracellular parasites IC50/48 h. All experiments were performed in quintuplicate and independently repeated twice. (B) Intracellular parasite viability at the early stages of infection. Macrophages were infected for 6 h and then treated with PK11195 for 24 h or 48 h.(C) Intracellular parasite viability at the later stages of infection. Macrophages were infected for 96 h and then treated with PK11195 for 24 h, 48 h, or 72 h. At each treatment time point, the effect of PK11195 treatment was compared with the effect of amphotericin B sodium deoxycholate treatment. (D) Reversibility of the effect of treatment with PK11195 on the viability of intracellular Leishmania parasites. Macrophages were infected for 6 h and treated with 75 μM PK11195. After 6, 12, 24, or 48 h of exposure, macrophages were washed and incubated in PK11195-free complete medium for an additional 48 h, and then the reversibility of the effect of treatment was assessed by counting the number of viable parasites. Lines represent the median and floating bars quartiles (25% and 75%) for independent experiments performed three times in at least in triplicate (Kruskal-Wallis test, Dunn's multiple comparison test, *p < 0.05, **p < 0.01, ***p < 0.001, ****p < 0.0001).[1].Guedes CES, et al. In vitro evaluation of the anti-leishmanial activity and toxicity of PK-11195. Mem Inst Oswaldo Cruz. 2018 Feb 5;113(4):e170345.
  • production of inflammatory mediators by macrophages treated with PK11195. (A) NADPH-dependent O2 ●-production during phagocytosis. Macrophages were pre-treated for 24 h with PK11195 (75 μM), LPS (500 ng/mL), or both PK11195 (75 μM) and LPS (500 ng/mL). Photon emissions per second were measured prior and after the addition of Leishmania amazonensis promastigotes to the culture. Data are derived from one representative experiment out of four independently performed experiments, each with a single replicate (Mann- Whitney test, p = 0.028). (B) MCP-1 production was assessed in cell supernatants of infected macrophages, either primed or not primed with 50 UI/mL IFN-γ for 24 h, and then treated with 50 μM PK11195 for a further 24 or 48 h. Bars represent means ± SD of one representative experiment out of three independently experiments performed in sextuplicate (one-way ANOVA, Sidak's multiple comparisons test **p < 0.01, ****p < 0.0001).[1].Guedes CES, et al. In vitro evaluation of the anti-leishmanial activity and toxicity of PK-11195. Mem Inst Oswaldo Cruz. 2018 Feb 5;113(4):e170345.
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