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Entinostat (MS-275) HDAC inhibitor

Cat.No.S1053

Entinostat (MS-275, SNDX-275) strongly inhibits HDAC1 and HDAC3 with IC50 of 0.51 μM and 1.7 μM in cell-free assays, compared with HDACs 4, 6, 8, and 10. This compound induces autophagy and apoptosis. Phase 3.

Entinostat (MS-275) HDAC inhibitor Chemical Structure

Chemical Structure

Molecular Weight: 376.41

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Quality Control

Batch: Purity: 99.96%

99.96

Related Targets	JAK BET Histone Methyltransferase PKC PARP HIF PRMT EZH2 AMPK Sirtuin
Other HDAC Inhibitors	ITF-2357 (Givinostat) Hydrochloride Monohydrate Fimepinostat (CUDC-907) Trichostatin A (TSA) RGFP966 Tubastatin A Hydrochloride Tubastatin A Mocetinostat (MGCD0103) Ricolinostat (ACY-1215) PCI-34051 MC1568

Solubility in DMSO or Water

In vitro
Batch:

DMSO : 75 mg/mL (199.25 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Water : Insoluble

Ethanol : Insoluble

The solubility data above are all experimental results (not literature values).

DMSO : 75 mg/mL (199.25 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Water : Insoluble

Ethanol : Insoluble

The solubility data above are all experimental results (not literature values).

DMSO : 75 mg/mL (199.25 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Water : Insoluble

Ethanol : Insoluble

The solubility data above are all experimental results (not literature values).

DMSO : 75 mg/mL (199.25 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Water : Insoluble

Ethanol : Insoluble

The solubility data above are all experimental results (not literature values).

DMSO : 75 mg/mL (199.25 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Water : Insoluble

Ethanol : Insoluble

The solubility data above are all experimental results (not literature values).

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.
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.	4.000mg/ml (10.63mM)	Taking the 1 mL working solution as an example, add 50 μL of 80 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.

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.

Read more about Entinostat (MS-275) solubility in DMSO or water

Working Concentrations for Cell Culture Treatment

Read more about Entinostat (MS-275) working concentrations for cell culture treatment

Working Concentrations for Animal Model Treatment

Mechanism of Action

Information	Entinostat (MS-275) is a potent, selective class I HDAC inhibitor. It affects Wnt, Hippo, and STAT signaling by inducing histone hyperacetylation and altering gene transcription, effectively inhibiting tumor proliferation and promoting apoptosis and anti-tumor immunity.
Read more about Entinostat (MS-275) IC50 for cell-based and cell-free assays
Primary Applications and Mechanism of Action

Read more about Entinostat (MS-275) Mechanism of Action

Chemical Information, Storage & Stability

Molecular Weight	376.41	Formula	C₂₁H₂₀N₄O₃	Storage (From the date of receipt)	3 years-20°Cpowder
CAS No.	209783-80-2	Download SDF		Storage of Stock Solutions	1 year-80°Cin solvent 1 month-20°Cin solvent
Synonyms	SNDX-275			Smiles	C1=CC=C(C(=C1)N)NC(=O)C2=CC=C(C=C2)CNC(=O)OCC3=CN=CC=C3

Read more about storage & stability

Entinostat (MS-275) Combination Database

Read more comparative analysis about Entinostat (MS-275)

Tech Support

Handling Instructions

Tel: +1-832-582-8158 Ext:3

If you have any other enquiries, please leave a message.

Frequently Asked Questions

Question 1:
I would like to use it (Catalog No.S1053) for animal study. What is your recommendation for the solvent? What is the role of PEG 300 in this case? Can I use DMSO only and dilute it with PBS or HBSS?

Answer:
2%DMSO/30%PEG/68%Water is recommended. PEG is an important polymer that helps with the solubility of hydrophobic drugs. If you use DMSO only and dilute it with PBS or HBSS, it will likely to precipitate out since this compound has very low solubility in water.

Dilution Calculator

Calculate the dilution required to prepare a stock solution. The Selleck dilution calculator is based on the following equation:

Concentration _(start) x Volume _(start) = Concentration _(final) x Volume _(final)

This equation is commonly abbreviated as: C1V1 = C2V2 ( Input Output )

*When preparing stock solutions always use the batch-specific molecular weight of the product found on the vial label and MSDS / COA (available online).

The Serial Dilution Calculator Equation

Serial Dilutions

Concentration (start):

Dilution-folds:

Computed Result

C1=C0/X	C1:		LOG(C1):
C2=C1/X	C2:		LOG(C2):
C3=C2/X	C3:		LOG(C3):
C4=C3/X	C4:		LOG(C4):
C5=C4/X	C5:		LOG(C5):
C6=C5/X	C6:		LOG(C6):
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C8=C7/X	C8:		LOG(C8):