Name: Danirixin (GSK1325756)
Brand: Selleck Chemicals
SKU: S6620
Availability: InStock
Rating: 5 (2 reviews)

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Quality Control

Batch: Purity: 99.82%

99.82

Related Targets	PD-1/PD-L1 STING AhR Immunology & Inflammation related CD markers Interleukins Anti-infection Antioxidant COX Histamine Receptor
Other CXCR Inhibitors	AZD5069 SB 225002 WZ811 Reparixin (Repertaxin) LIT-927 Navarixin (SCH-527123) UNBS5162 LY2510924 AMD3465 hexahydrobromide AMG 487

Solubility

In vitro
Batch:

DMSO : 88 mg/mL (199.14 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Water : Insoluble

Ethanol : 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.	4.400mg/ml (9.96mM)	Taking the 1 mL working solution as an example, add 50 μL of 88 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.	0.730mg/ml (1.65mM)	Taking the 1 mL working solution as an example, add 50 μL of 14.6 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.

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	441.90	Formula	C₁₉H₂₁ClFN₃O₄S	Storage (From the date of receipt)	3 years -20°C powder
CAS No.	954126-98-8	--		Storage of Stock Solutions	1 year-80°Cin solvent 1 month-20°Cin solvent
Synonyms	N/A			Smiles	CC1=C(C=CC=C1F)NC(=O)NC2=C(C(=C(C=C2)Cl)S(=O)(=O)C3CCCNC3)O

Mechanism of Action

Targets/IC₅₀/Ki	CXCR2 CXCL8 12.5 nM
In vitro	Danirixin (GSK1325756) has high affinity for CXCR2, with a negative log of the 50% inhibitory concentration (pIC50) of 7.9 for binding to Chinese hamster ovary cell (CHO)-expressed human CXCR2, and 78-fold selectivity over binding to CHO-expressed CXCR1. It is a competitive antagonist against CXCL8 in Ca2+-mobilization assays, with a K_B of 6.5 nM and antagonist potency (pA2) of 8.44 and is fully reversible in washout experiments over 180 minutes.
In vivo	In rat and human whole-blood studies assessing neutrophil activation by surface CD11b expression following CXCL2 (rat) or CXCL1 (human) challenge, Danirixin (GSK1325756) blocks the CD11b upregulation with pIC50s of 6.05 and 6.3, respectively. Orally dosed, it also blocks the influx of neutrophils into the lung in vivo in rats following aerosol lipopolysaccharide or ozone challenge, with median effective doses (ED50s) of 1.4 and 16 mg/kg respectively.
References	[1] https://pubmed.ncbi.nlm.nih.gov/28611093/ [2] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4475328/

Clinical Trial Information

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

NCT Number	Recruitment	Conditions	Sponsor/Collaborators	Start Date	Phases
NCT03457727	Completed	Pulmonary Disease Chronic Obstructive	GlaxoSmithKline	March 7 2018	Phase 1
NCT03136380	Completed	Pulmonary Disease Chronic Obstructive	GlaxoSmithKline	May 10 2017	Phase 1

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Danirixin (GSK1325756) CXCR antagonist

Chemical Structure

Molecular Weight: 441.90