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(-)-Parthenolide HDAC inhibitor

Name: (-)-Parthenolide
Brand: Selleck Chemicals
SKU: S2341
Availability: InStock
Rating: 5 (27 reviews)

Cat.No.S2341

(-)-Parthenolide, an inhibitor of the Nuclear Factor-κB Pathway, specifically depletes HDAC1 protein without affecting other class I/II HDACs; Also promotes the ubiquitination of MDM2 and activates p53 cellular functions.

Chemical Structure

Molecular Weight: 248.32

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Quality Control

Batch: Purity: 99.83%

99.83

Related Targets	NF-κB Antioxidant ROS IκB/IKK Nrf2 AP-1 MALT NOD
Other HDAC Inhibitors	Entinostat (MS-275) RGFP966 Tubastatin A Tubastatin A HCl Fimepinostat (CUDC-907) Trichostatin A (TSA) Mocetinostat (MGCD0103) Ricolinostat (ACY-1215) Quisinostat (JNJ-26481585) Dihydrochloride MC1568

Solubility

In vitro
Batch:

DMSO : 50 mg/mL (201.35 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Ethanol : 50 mg/mL

Water : Insoluble

Molarity Calculator

Mass	Concentration	Volume	Molecular Weight
Mass value Mass unit	Concentration value Concentration unit	Volume value Volume unit	Molecular weight (g/mol)

Dilution Calculator Molecular Weight Calculator

In vivo batch selection In vivo Batch:
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Clear solution	5%DMSO 1 40%PEG300 2 5%Tween80 3 50%ddH2O Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.	2.500mg/ml (10.07mM)	Taking the 1 mL working solution as an example, add 50 μL of 50 mg/ml clarified DMSO stock solution to 400 μL of PEG300, mix evenly to clarify it; add 50 μL of Tween80 to the above system, mix evenly to clarify; then continue to add 500 μL of ddH2O to adjust the volume to 1 mL. The mixed solution should be used immediately for optimal results.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Clear solution	5%DMSO 1 40%PEG300 2 5%Tween80 3 50%ddH2O Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.	3.120mg/ml (12.56mM)	Taking the 1 mL working solution as an example, add 50 μL of 62.4 mg/ml clarified DMSO stock solution to 400 μL of PEG300, mix evenly to clarify it; add 50 μL of Tween80 to the above system, mix evenly to clarify; then continue to add 500 μL of ddH2O to adjust the volume to 1 mL. The mixed solution should be used immediately for optimal results.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.

In vivo Formulation Calculator (Clear solution)

Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)

Dosage: mg/kg

Average weight of animals: g

Dosing volume per animal: μL

Number of animals:

Step 2: Enter the in vivo formulation (This is only the calculator, not formulation. Please contact us first if there is no in vivo formulation at the solubility Section.)

% DMSO

% Tween 80

% ddH₂O

% DMSO

Calculation results:

Working concentration: mg/ml;

Method for preparing DMSO master liquid: mg drug pre-dissolved in μL DMSO ( Master liquid 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 master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH₂O, mix and clarify.

Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.

Note: 1. Please make sure the liquid is clear before adding the next solvent.
2. Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such
as vortex, ultrasound or hot water bath can be used to aid dissolving.

Chemical Information, Storage & Stability

Molecular Weight	248.32	Formula	C₁₅H₂₀O₃	Storage (From the date of receipt)	3 years-20°Cpowder
CAS No.	20554-84-1	Download SDF		Storage of Stock Solutions	1 year-80°Cin solvent 1 month-20°Cin solvent

Mechanism of Action

Targets/IC₅₀/Ki	HDAC1 NF-κB MDM2 p53
In vitro	Parthenolide (PTL), a sesquiterpene lactone purified from the shoots of the feverfew, inhibits ubiquitin-specific peptidase 7 (USP7) activity and deubiquitinate and stabilize β-catenin which the key transcriptional factor of Wnt signaling pathway, suggesting that PTL is an promising anticancer agent targeting aberrant USP7/Wnt signaling.
In vivo	Parthenolide (PN), a P65 inhibitor, significantly increases the tumor volumes in subcutaneous xenograft gastric cancer (GC) mouse model, which can be reversed by gastrin.
References	[1] https://pubmed.ncbi.nlm.nih.gov/17656318/ [2] https://pubmed.ncbi.nlm.nih.gov/11961112/ [3] https://pubmed.ncbi.nlm.nih.gov/19276167/ [4] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7076227/ [5] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5987590/

Applications

Methods	Biomarkers	Images	PMID
Growth inhibition assay	Cell viability		28423582
Western blot	B-Raf / c-Myc MEK / p-MEK / ERK / p-ERK STAT3 / p-STAT3 / GSK3α/β / AKT / p-AKT Bcl-2 / Bak / Bax		28423582