1. Neuronal Signaling
  2. Monoamine Oxidase
  3. Pargyline hydrochloride

Pargyline hydrochloride is an irreversible monoamine oxidase (MAO) inhibitor with Kis of 13 μM and 0.5 μM for MAO-A and MAO-B, respectively. Pargyline hydrochloride has antihypertensive and anticancer activities. Pargyline (hydrochloride) is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

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Pargyline hydrochloride Chemical Structure

Pargyline hydrochloride Chemical Structure

CAS No. : 306-07-0

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Solid + Solvent (Highly Recommended)
10 mM * 1 mL in DMSO
ready for reconstitution
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Based on 2 publication(s) in Google Scholar

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Description

Pargyline hydrochloride is an irreversible monoamine oxidase (MAO) inhibitor with Kis of 13 μM and 0.5 μM for MAO-A and MAO-B, respectively. Pargyline hydrochloride has antihypertensive and anticancer activities[1][2][3]. Pargyline (hydrochloride) is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

IC50 & Target[2]

MAO-B

0.5 μM (Ki)

MAO-A

13 μM (Ki)

In Vitro

Pargyline (0.5-2 mM; 24-120 hours; LNCaP-LN3 cells) treatment inhibits the proliferation of prostate cancer cells in a time- and dose-dependent manner[2].
Pargyline (0.5-2 mM; 24-48 hours; LNCaP-LN3 cells) treatment decreases S phase and increases the G1 phase in the cells in a dose-dependent manner[2].
Pargyline (0.5 mM; 24 hours; LNCaP-LN3 cells) treatment increases the apoptotic cells[2].
Pargyline (2 mM; 48 hours; LNCaP-LN3 cells) treatment induces an increase of cytochrome c and a decrease of caspase-3 in the cells, but does not lead to a change of BCL-2 expression[2].

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

Cell Proliferation Assay[2]

Cell Line: LNCaP-LN3 cells
Concentration: 0.5 mM, 1 mM, 1.5 mM or 2 mM
Incubation Time: 24 hours, 48 hours, 72 hours, 96 hours or 120 hours
Result: Inhibited the proliferation of prostate cancer cells in a time- and dose-dependent manner.

Cell Cycle Analysis[2]

Cell Line: LNCaP-LN3 cells
Concentration: 0.5 mM, 2 mM
Incubation Time: 24 hours, 48 hours
Result: The S phase ratio of the cells was decreased, while their G1 phase ratio was increased.

Apoptosis Analysis[2]

Cell Line: LNCaP-LN3 cells
Concentration: 0.5 mM
Incubation Time: 24 hours
Result: Increased the apoptotic cells.

Western Blot Analysis[2]

Cell Line: LNCaP-LN3 cells
Concentration: 2 mM
Incubation Time: 48 hours
Result: Induced an increase of cytochrome c and a decrease of caspase-3.
In Vivo

Pargyline (10 mg/kg; iv) treatment induces a moderate (about 20 mm Hg) but persistent (48 h) decrease of systolic blood pressure in unanesthetized adult spontaneously hypertensive rats (SHR) but not in normotensive rats[3].
A low dose of Pargyline (200 μg; icv) injected directly into the brain lowered arterial pressure. The hypotensive action of Pargylline in SHR appears to be the consequence of Norepinephrine accumulating at an inhibitory α-adrenoceptor in brain[3].

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

Molecular Weight

195.69

Formula

C11H14ClN

CAS No.
Appearance

Solid

Color

White to off-white

SMILES

C#CCN(C)CC1=CC=CC=C1.[H]Cl

Shipping

Room temperature in continental US; may vary elsewhere.

Storage

4°C, sealed storage, away from moisture

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)

Solvent & Solubility
In Vitro: 

DMSO : 125 mg/mL (638.77 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

H2O : 100 mg/mL (511.01 mM; Need ultrasonic)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 5.1101 mL 25.5506 mL 51.1012 mL
5 mM 1.0220 mL 5.1101 mL 10.2202 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 (sealed storage, away from moisture). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

* 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)

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Molecular Weight *

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    40% PEG300    5% Tween-80    45% Saline

    Solubility: ≥ 2.08 mg/mL (10.63 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.08 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 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.
  • Protocol 2

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

    Solubility: ≥ 2.08 mg/mL (10.63 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.08 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 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: 25 mg/mL (127.75 mM); Clear solution; Need ultrasonic and warming

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

Purity: 99.91%

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 (sealed storage, away from moisture). 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
H2O / DMSO 1 mM 5.1101 mL 25.5506 mL 51.1012 mL 127.7531 mL
5 mM 1.0220 mL 5.1101 mL 10.2202 mL 25.5506 mL
10 mM 0.5110 mL 2.5551 mL 5.1101 mL 12.7753 mL
15 mM 0.3407 mL 1.7034 mL 3.4067 mL 8.5169 mL
20 mM 0.2555 mL 1.2775 mL 2.5551 mL 6.3877 mL
25 mM 0.2044 mL 1.0220 mL 2.0440 mL 5.1101 mL
30 mM 0.1703 mL 0.8517 mL 1.7034 mL 4.2584 mL
40 mM 0.1278 mL 0.6388 mL 1.2775 mL 3.1938 mL
50 mM 0.1022 mL 0.5110 mL 1.0220 mL 2.5551 mL
60 mM 0.0852 mL 0.4258 mL 0.8517 mL 2.1292 mL
80 mM 0.0639 mL 0.3194 mL 0.6388 mL 1.5969 mL
100 mM 0.0511 mL 0.2555 mL 0.5110 mL 1.2775 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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  • 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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Pargyline hydrochloride
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