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PLX5622 CSF-1R inhibitor

Name: PLX5622
SKU: S8874
Availability: InStock
Rating: 5 (14 reviews)

Cat.No.S8874

PLX5622 is a highly selective CSF-1R inhibitor (IC50 < 10 nmol/L), showing > 20-fold selectivity over KIT and FLT3.

Chemical Structure

Molecular Weight: 395.41

Jump to Mechanism of Action Solubility Chemical Information, Storage & Stability Specificity

Quality Control

Batch: Purity: 99.99%

99.99

Products Often Used Together with PLX5622

ARRY-382

It removes microglia by binding to the receptor, while ARRY-382 hinders cell growth without killing microglia.

GW2580

This compound and GW2580 (PLX6134) have been used to eliminate microglia and CSF-1-dependent macrophages in various research settings.

Related Targets	EGFR VEGFR PDGFR FGFR c-Met Src FLT3 HER2 c-Kit Bcr-Abl MEK BTK IGF-1R ALK Trk receptor Syk Axl c-RET FAK Mertk Tie-2 DYRK Tyro3 Ephrin receptor ROS1 Pyk2 RON DDR ACK Fer kinase
Related Products	Sotuletinib (BLZ945) GW2580 Edicotinib(JNJ-40346527) CSF1R-IN-1 Sulfatinib Vimseltinib Ki20227 AZD7507 Cabiralizumab (Anti-CSF1R / M-CSFR / CD115) Chiauranib ARRY-382 Pimicotinib

Chemical Information, Storage & Stability

Molecular Weight	395.41	Formula	C₂₁H₁₉F₂N₅O	Storage (From the date of receipt)	3 years -20°C powder
CAS No.	1303420-67-8	--		Storage of Stock Solutions	1 year-80°Cin solvent 1 month-20°Cin solvent
Synonyms	N/A			Smiles	CC1=CC2=C(NC=C2CC3=C(N=C(C=C3)NCC4=C(N=CC(=C4)F)OC)F)N=C1

Solubility

In vitro
Batch:

DMSO : 79 mg/mL (199.79 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.
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 (6.32mM)	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 make it clear; 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.
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 (12.65mM)	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	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.	1.320mg/ml (3.34mM)	Taking the 1 mL working solution as an example, add 50 μL 26.3 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 make it clear. Volume up 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.

Mechanism of Action

Targets/IC₅₀/Ki	CSF-1R ^[1] (Cell-free assay) 0.016 μM FLT3 ^[1] (Cell-free assay) 0.39 μM KIT ^[1] (Cell-free assay) 0.86 μM AURKC ^[1] (Cell-free assay) 1 μM KDR ^[1] (Cell-free assay) 1.1 μM
In vitro	PLX5622 is a highly selective CSF-1R inhibitor (IC50 < 10 nmol/L), showing > 20-fold selectivity over KIT and FLT3.
In vivo	In vivo PLX5622 demonstrates desirable PK properties in mice, rats, dogs, and monkeys, with a brain penetrance of ~20%. This compound has low systemic clearance, moderate volume of distribution, and favorable oral bioavailability (F > 30%) in all four species. It is a useful compound for investigating microglial dynamics. It allows for the sustained and specific elimination of microglia, preceding and during pathology development of Alzheimer’s disease (AD). Long-term this compound-mediated microglial depletion is highly robust, sustainable, and specific to the microglial compartment^[1].
References	[1] https://www.nature.com/articles/s41467-019-11674-z#Sec25 [2] https://pubmed.ncbi.nlm.nih.gov/31434879/ [3] https://pubmed.ncbi.nlm.nih.gov/33058832/

Applications

Methods	Biomarkers	PMID
Western blot	NLRP3 / β-actin / Iba1 PrPres	32242284
IHC	RML / NBH	29769333
Immunofluorescence	Thio-S / AC / OC / Aβ42 Thioflavin S / TMEM119 / Iba1 PBS / MTX cortical microglia microglia elimination IBA1	31434879