Name: Valemetostat (DS-3201)
Brand: Selleck Chemicals
SKU: S8926
Availability: InStock
Rating: 5 (15 reviews)

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Quality Control

Batch: Purity: 99.98%

99.98

Related Targets	PRMT MAT2A DNA Methyltransferase LSD1 JMJD G9a/GLP MLL NSD FTO SETD
Other EZH2 Inhibitors	GSK126 PF-06821497 GSK343 SHR2554 EZH2/HSP90-IN-29 EBI-2511 Tulmimetostat (CPI-0209)

Solubility

In vitro
Batch:

DMSO : 98 mg/mL (200.81 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Ethanol : 98 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.
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.	5.000mg/ml (10.25mM)	Taking the 1 mL working solution as an example, add 50 μL of 100 mg/ml clarified DMSO stock solution to 400 μL PEG300, mix evenly to clarify it; add 50 μL Tween80 to the above system, mix evenly to clarify it; then continue to add 500 μL ddH2O to adjust the volume to 1 mL. The mixed solution should be used immediately for optimal results.
Clear solution	5% DMSO 1 95% corn oil Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.	2.500mg/ml (5.12mM)	Taking the 1 mL working solution as an example, add 50 μL of 50 mg/ml clear DMSO stock solution to 950 μL of corn oil and mix evenly. 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.
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.	4.900mg/ml (10.04mM)	Taking the 1 mL working solution as an example, add 50 μL of 98 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.

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	488.02	Formula	C₂₆H₃₄ClN₃O₄	Storage (From the date of receipt)	3 years -20°C powder
CAS No.	1809336-39-7	--		Storage of Stock Solutions	1 year-80°Cin solvent 1 month-20°Cin solvent
Synonyms	DS-3201b			Smiles	CC1=CC(=C(C(=O)N1)CNC(=O)C2=CC(=C3C(=C2C)OC(O3)(C)C4CCC(CC4)N(C)C)Cl)C

Mechanism of Action

Targets/IC₅₀/Ki	EZH1 EZH2
In vitro	Valemetostat (DS-3201) significantly reduces ATL cell viability compared with the others and reactivates the expression of the highly H3K27me3-accumulated EZH1/2 target genes in an ex vivo culture of primary ATL cells. It also shows superior anti-growth effects compared with EZH2-selective inhibitor in malignant lymphoma cell lines..
References	[1] https://pubmed.ncbi.nlm.nih.gov/31747604/ [2] https://www.sciencedirect.com/science/article/pii/S0006497119825892

Clinical Trial Information

(data from https://clinicaltrials.gov, updated on 2024-05-22)

NCT Number	Recruitment	Conditions	Sponsor/Collaborators	Start Date	Phases
NCT05879484	Not yet recruiting	Sinonasal Cancer\|Squamous Non-small Cell Lung Cancer\|Lung Cancer\|Head and Neck Squamous Cell Carcinoma\|Head and Neck Carcnimona\|Head and Neck Cancer	National Cancer Institute (NCI)\|National Institutes of Health Clinical Center (CC)	May 15 2024	Phase 1\|Phase 2
NCT06244485	Recruiting	Advanced Solid Tumor	Daiichi Sankyo	February 16 2024	Phase 1
NCT04842877	Active not recruiting	Lymphoma B-Cell	The Lymphoma Academic Research Organisation\|Daiichi Sankyo	June 11 2021	Phase 2
NCT04703192	Active not recruiting	Relapsed/Refractory Peripheral T-Cell Lymphoma\|Adult T Cell Leukemia/Lymphoma	Daiichi Sankyo	June 3 2021	Phase 2
NCT04276662	Completed	Hepatic Impairment	Daiichi Sankyo	November 21 2019	Phase 1
NCT03110354	Terminated	Leukemia Myeloid Acute\|Leukemia Lymphocytic Acute	Daiichi Sankyo	April 5 2017	Phase 1

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Valemetostat (DS-3201) EZH2 inhibitor

Chemical Structure

Molecular Weight: 488.02