Name: Darapladib (SB-480848)
Brand: Selleck Chemicals
SKU: S7520
Availability: InStock
Rating: 5 (10 reviews)

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Quality Control

Batch: Purity: 99.99%

99.99

Related Targets	Dehydrogenase HSP Transferase P450 (e.g. CYP17) PDE phosphatase PPAR Vitamin Carbohydrate Metabolism Mitochondrial Metabolism
Other Phospholipase Inhibitors	Varespladib (LY315920) GW4869 U-73122 Tanshinone I (E/Z)-Polydatin Quinacrine 2HCl Melittin Trigonelline FIPI ML348

Cell Culture, Treatment & Working Concentration

Cell Lines	Assay Type	Activity Description	PMID
KB-8-5-11	qHTS assay	P-glycoprotein substrates identified in KB-8-5-11 adenocarcinoma cell line, qHTS therapeutic library screen	31515284
KB-3-1	qHTS assay	P-glycoprotein substrates identified in KB-3-1 adenocarcinoma cell line, qHTS therapeutic library screen	31515284
Click to View More Cell Line Experimental Data

Solubility

In vitro
Batch:

DMSO : 100 mg/mL (149.97 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Ethanol : 100 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 Corn oil Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.	5.000mg/ml (7.50mM)	Taking the 1 mL working solution as an example, add 50 μL of 100 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.
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 (7.50mM)	Taking the 1 mL working solution as an example, add 50 μL of 100 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.
Clear solution	1% DMSO 1 40%PEG300 2 5%Tween80 3 54%ddH2O Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.	1.000mg/ml (1.50mM)	Taking the 1 mL working solution as an example, add 10 μL of 100 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 540 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	666.77	Formula	C₃₆H₃₈F₄N₄O₂S	Storage (From the date of receipt)	3 years-20°Cpowder
CAS No.	356057-34-6	Download SDF		Storage of Stock Solutions	1 year-80°Cin solvent 1 month-20°Cin solvent
Synonyms	SB-480848			SMILES	CCN(CC)CCN(CC1=CC=C(C=C1)C2=CC=C(C=C2)C(F)(F)F)C(=O)CN3C4=C(CCC4)C(=O)N=C3SCC5=CC=C(C=C5)F

Read more about storage stability stock solution CAS number SMILES

Mechanism of Action

Targets/IC₅₀/Ki	Lp-PLA2 (Cell-free assay) 0.25 nM
In vitro	During the copper catalysed oxidation of human LDL, Darapladib prevents the production of lyso-PtdCho with IC50 of 4 nM and subsequent monocyte chemotaxis with IC50 of 4 nM.
In vivo	In the WHHL rabbits, Darapladib (30 mg/kg p.o.) exhibits excellent inhibition of Lp-PLA2 within the atherosclerotic plaque by 95%. This compound, as an inhibitor of Lp-PLA2, reduces development of advanced coronary atherosclerosis in diabetic and hypercholesterolemic (DMHC) pigs. In DMHC pigs, this compound reduces the amount of IgG-immunopositive material that leaked into the brain and also the density of Aβ42-containing neurons.
References	[1] https://pubmed.ncbi.nlm.nih.gov/12643913/ [2] https://pubmed.ncbi.nlm.nih.gov/18806801/ [3] https://pubmed.ncbi.nlm.nih.gov/23388174/

Clinical Trial Information

(data from https://clinicaltrials.gov, updated on 2017-04-18)

NCT Number	Recruitment	Conditions	Sponsor/Collaborators	Start Date	Phases
NCT01067339	COMPLETED	Endothelial Dysfunction	Mayo Clinic	2010-02-04	PHASE3
NCT02058641	COMPLETED	Atherosclerosis	GlaxoSmithKline	2014-02-26	PHASE1
NCT01000727	COMPLETED	Acute Coronary Syndrome	GlaxoSmithKline	2009-12-01	PHASE3
NCT02000804	COMPLETED	Atherosclerosis	GlaxoSmithKline	2013-10-23	PHASE1
NCT00799903	COMPLETED	Atherosclerosis	GlaxoSmithKline	2008-12-01	PHASE3
NCT02000804	Completed	Atherosclerosis	GlaxoSmithKline	2013-10-23	Phase 1

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Darapladib (SB-480848) Lp-PLA2 Inhibitor

Chemical Structure

Molecular Weight: 666.77