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GSK620 BET inhibitor

Name: GSK620
Brand: Selleck Chemicals
SKU: S9685
Rating: 5 (1 reviews)

Cat.No.S9685

GSK620 is a pan-BD2 inhibitor, which shows an anti-inflammatory phenotype in human whole blood with excellent broad selectivity, developability, and in vivo oral pharmacokinetics.

Chemical Structure

Molecular Weight: 325.36

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Quality Control

Batch: Purity: 99.96%

99.96

Related Targets	HDAC JAK Histone Methyltransferase PKC PARP HIF PRMT EZH2 AMPK Histone Acetyltransferase
Other BET Inhibitors	Pelabresib (CPI-0610) ZEN-3694 (BET-IN-19) Molibresib (I-BET-762) Mivebresib (ABBV-075) INCB054329 Birabresib (OTX015) I-BET151 (GSK1210151A) Apabetalone (RVX-208) AZD5153 6-hydroxy-2-naphthoic acid CPI-203

Chemical Information, Storage & Stability

Molecular Weight	325.36	Formula	C₁₈H₁₉N₃O₃	Storage (From the date of receipt)	3 years -20°C powder
CAS No.	2088410-46-0	--		Storage of Stock Solutions	1 year-80°Cin solvent 1 month-20°Cin solvent
Synonyms	N/A			Smiles	CNC(=O)C1=CC(=CN(CC2=CC=CC=C2)C1=O)C(=O)NC3CC3

Solubility

In vitro
Batch:

DMSO : 65 mg/mL (199.77 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Water : Insoluble

Ethanol : Insoluble

Molarity Calculator

Mass	Concentration	Volume	Molecular Weight
=	×	×

Dilution Calculator Molecular Weight Calculator

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 (7.68mM)	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.
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.	0.500mg/ml (1.54mM)	Taking the 1 mL working solution as an example, add 50 μL of 10 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.

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.

Mechanism of Action

Targets/IC₅₀/Ki	BD2
In vitro	GSK620 is highly selective for the BET-BD2 family of proteins, with >200-fold selectivity over all other bromodomains. This compound is capable of reducing the MCP-1 response in a concentration-dependent manner, providing strong evidence that it is indeed engaging BD2 in cells.
In vivo	GSK620 is a potent and selective pan-BD2 inhibitor with excellent in vivo PK properties and excellent developability properties, with the exception of moderate FaSSIF solubility driven by its highly crystalline nature.
References	[1] https://pubmed.ncbi.nlm.nih.gov/32702236/ [2] https://pubmed.ncbi.nlm.nih.gov/32741705/

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