Cat. No.: HY-15749

XL228

4 Cited Publications

Customer Review

Based on 4 publication(s) in Google Scholar

XL228 is a multi-targeted tyrosine kinase inhibitor with IC₅₀s of 5, 3.1, 1.6, 6.1, 2 nM for Bcr-Abl, Aurora A, IGF-1R, Src and Lyn, respectively.

For research use only. We do not sell to patients.

Purity: 99.64%
CAS No.: 898280-07-4
Formula: C₂₂H₃₁N₉O
Molecular Weight:437.54

Storage:

Powder -20°C, 3 years , 4°C, 2 years ; In solvent -80°C, 2 years , -20°C, 1 year

XL228 Chemical Structure

CAS No.: 898280-07-4

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Top Publications Citing

Use of MCE Products

Fluorescent Dye

Strong Fluorescence Signal / Multi-Disciplinary Applications / High Fluorescence Specificity

Biological Activity
- Description
- IC₅₀ & Target
- Cellular Effect
- In Vitro
- In Vivo
- Clinical Trial
Chemical Information
Publications (4)
Solvent & Solubility
- In Vitro
- In Vivo
Purity & Documentation
References
Help & FAQs
Classifications
Bioz

Biological Activity

Description

XL228 is a multi-targeted tyrosine kinase inhibitor with IC₅₀s of 5, 3.1, 1.6, 6.1, 2 nM for Bcr-Abl, Aurora A, IGF-1R, Src and Lyn, respectively.

IC₅₀ & Target^[1]

Aurora A

3.1 nM (IC₅₀)

IGF-1R

1.6 nM (IC₅₀)

All Aurora Kinase Isoforms :

All Bcr-Abl Isoforms :

Abl
Bcr-Abl

All Src Isoforms :

Cellular Effect

Cell Line	Type	Value	Description	References
K562	IC₅₀	33 nM Compound: XL228	Antiproliferative activity against imatinib resistant human K562 cells expressing BCR-ABL assessed as cell growth inhibition Antiproliferative activity against imatinib resistant human K562 cells expressing BCR-ABL assessed as cell growth inhibition	[PMID: 35551036]
K562	IC₅₀	43 nM Compound: XL228	Antiproliferative activity against imatinib resistant human K562 cells expressing STAT5 assessed as cell growth inhibition Antiproliferative activity against imatinib resistant human K562 cells expressing STAT5 assessed as cell growth inhibition	[PMID: 35551036]

In Vitro

XL228 shows a broad pattern of protein kinase inhibition, including the tyrosine kinases IGF1R, SRC, ABL, FGFR1-3, and ALK and the serine/threonine kinases Aurora A and Aurora B. A panel of kinase inhibitors including XL228 is profiled against a series of cancer cell lines with known alterations in major signaling pathways. Approximately 30% of the lines demonstrate XL228 IC₅₀ values of <100nM in viability assays, including many lines with characterized ALK or FGFR mutations or amplifications. XL228 eliminates the phosphorylation of Aurora A and B at concentrations above 10 nM. Short-term treatment of HeLa cells leads to disruption of mitotic spindle formation, with the majority of mitotic cells exhibiting a unipolar spindle and disorganized chromosomes^[2]. It displays low nanomolar biochemical activity against wild type Abl kinase (K_i=5 nM), as well as the T315I form of Abl resistant to imatinib and dasatinib (K_i=1.4 nM). XL228 inhibits phosphorylation of BCR-ABL and its substrate STAT5 in K562 cells in vitro with IC₅₀s of 33 and 43 nM, respectively^[3].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

In Vivo

Single-dose pharmacodynamics studies demonstrate a potent effect of XL228 on BCR-ABL signaling in K562 xenograft tumors. Phosphorylation of BCR-ABL is decreased by 50% at XL228 plasma concentrations of 3.5 μM; a similar decrease in phospho-STAT5 occurred at 0.8 μM plasma concentration^[3].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Clinical Trial

NCT Number	Sponsor	Condition	Start Date	Phase A549
NCT01329991	Plexxikon\|		2011-05	PHASE1

Chemical Information

CAS No. 898280-07-4
Appearance Solid
Molecular Weight 437.54
Formula C₂₂H₃₁N₉O
Color White to off-white
SMILES

CN1CCN(C2=CC(NC3=NNC(C4CC4)=C3)=NC(NCC5=CC(C(C)C)=NO5)=N2)CC1
Shipping

Room temperature in continental US; may vary elsewhere.

Storage

Powder	-20°C	3 years
	4°C	2 years
In solvent	-80°C	2 years
	-20°C	1 year

Publications (4)

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Journal Impact Factor

Science

The target landscape of clinical kinase drugs. [Abstract]

2017 Dec 1;358(6367):eaan4368. PMID: 29191878
Nat Biomed Eng

TLR7/8-agonist-loaded nanoparticles promote the polarization of tumour-associated macrophages to enhance cancer immunotherapy. [Abstract]

2018 Aug;2(8):578-588. PMID: 31015631
University of Washington

2025.
Technical University of Munich

24.01.2018.

Solvent & Solubility

In Vitro:

DMSO : ≥ 83.33 mg/mL (190.45 mM; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

* "≥" means soluble, but saturation unknown.

View the Complete Stock Solution Preparation Table

Preparing Stock Solutions

View the Complete Stock Solution Preparation Table

Concentration Solvent Mass

1 mg

5 mg

10 mg

Concentration

Solvent

Mass

1 mM

2.2855 mL

11.4275 mL

22.8551 mL

5 mM

0.4571 mL

2.2855 mL

4.5710 mL

10 mM

0.2286 mL

1.1428 mL

2.2855 mL

Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.

Storage method and period of stock solution: -80°C, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.

Molarity Calculator

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Mass Mass

Concentration Concentration

Volume Volume

Molecular Weight Molecular Weight

Dilution Calculator

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

Concentration _(start) Concentration _(start)

Volume _(start) Volume _(start)

Concentration _(final) Concentration _(final)

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In Vivo:

Select the appropriate dissolution method based on your experimental animal and administration route.

Stock Solution Working Solution

For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for In Vivo experiments, it is recommended to prepare freshly and use it on the same day.
The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

Protocol 1

Add each solvent one by one: 10% DMSO 40% PEG300 5% Tween-80 45% Saline

Solubility: ≥ 2.08 mg/mL (4.75 mM); Clear solution

This protocol yields a clear solution of ≥ 2.08 mg/mL (saturation unknown).

Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.

Protocol 2

Add each solvent one by one: 10% DMSO 90% (20% SBE-β-CD in Saline)

Solubility: ≥ 2.08 mg/mL (4.75 mM); Clear solution

This protocol yields a clear solution of ≥ 2.08 mg/mL (saturation unknown).

Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.

Protocol 3

Add each solvent one by one: 10% DMSO 90% Corn Oil

Solubility: ≥ 2.08 mg/mL (4.75 mM); Clear solution

This protocol yields a clear solution of ≥ 2.08 mg/mL (saturation unknown). If the continuous dosing period exceeds half a month, please choose this protocol carefully.

Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 mg/mL) to 900 μL Corn oil, and mix evenly.

In Vivo Dissolution Calculator

Please enter the basic information of animal experiments:

Dosage Dosage
mg/kg
Animal Weight (Per Animal) Animal Weight (Per Animal)
g
Dosing Volume (Per Animal) Dosing Volume (Per Animal)
μL
Number of Animals Number of Animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.

Please enter your animal formula composition:

%
DMSO +

Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
%
+
+
%
Tween-80 + +
%
Saline +

The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).

Working solution concentration: 0.22 mg/mL

Purity & Documentation

Select Batch:

Purity: 99.98%

Assay: 99.98%

ee.: 99.98%

Data Sheet (279 KB)
SDS (254 KB)
- English - EN (254 KB)
- Français - FR (254 KB)
- Deutsch - DE (254 KB)
- Norwegian - NO (254 KB)
- Español - ES (254 KB)
- Swedish - SV (254 KB)
- Italian - IT (254 KB)
- Korean - KR (254 KB)
- Portuguese - PT (254 KB)
COA (2659 KB)
Elemental Analysis Report (2659 KB)
HNMR (2659 KB)
CNMR (2659 KB)
RP-HPLC (2659 KB)
NP-HPLC (2659 KB)
MS (2659 KB)
LCMS (2659 KB)
IR (2659 KB)
GC (2659 KB)
OR (2659 KB)
SDS-PAGE (2659 KB)
SEC-HPLC (2659 KB)
Other Report (2659 KB)
Handling Instructions (2659 KB)

References

[1]. Cortes J, et al. Preliminary Clinical Activity in a Phase I Trial of the BCR-ABL/IGF- 1R/Aurora Kinase Inhibitor XL228 in Patients with Ph++ Leukemias with Either Failure to Multiple TKI Therapies or with T315I Mutation. Blood 2008 112:3232

[2]. Douglas O, et al. Abstract C192: Characterization of the target profile of XL228, a multi‐targeted protein kinase inhibitor in phase 1 clinical development. Mol Cancer Ther 2009;8(12 Suppl):C192.

[3]. Shah N, et al. Targeting Drug-Resistant CML and Ph+-ALL with the Spectrum Selective Protein Kinase Inhibitor XL228. Blood 2007 110:474;

Help & FAQs

How should lyophilized recombinant proteins be reconstituted and stored?

1. Before opening the cap, centrifuge the vial at 13000 rpm for 20-30 seconds. This step will ensure that any lyophilized powder that may have adhered to the cap or walls is collected at the bottom of the vial, minimizing the risk of product loss.

Complete Stock Solution Preparation Table

Storage method and period of stock solution: -80°C, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.

Optional Solvent	Concentration Solvent Mass	1 mg	5 mg	10 mg	25 mg
DMSO	1 mM	2.2855 mL	11.4275 mL	22.8551 mL	57.1376 mL
	5 mM	0.4571 mL	2.2855 mL	4.5710 mL	11.4275 mL
	10 mM	0.2286 mL	1.1428 mL	2.2855 mL	5.7138 mL
	15 mM	0.1524 mL	0.7618 mL	1.5237 mL	3.8092 mL
	20 mM	0.1143 mL	0.5714 mL	1.1428 mL	2.8569 mL
	25 mM	0.0914 mL	0.4571 mL	0.9142 mL	2.2855 mL
	30 mM	0.0762 mL	0.3809 mL	0.7618 mL	1.9046 mL
	40 mM	0.0571 mL	0.2857 mL	0.5714 mL	1.4284 mL
	50 mM	0.0457 mL	0.2286 mL	0.4571 mL	1.1428 mL
	60 mM	0.0381 mL	0.1905 mL	0.3809 mL	0.9523 mL
	80 mM	0.0286 mL	0.1428 mL	0.2857 mL	0.7142 mL
	100 mM	0.0229 mL	0.1143 mL	0.2286 mL	0.5714 mL

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XL228

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Posttranslational Modification Library

Publications Citing Use of MedChemExpress (MCE) XL228

All Aurora Kinase Isoforms

All Bcr-Abl Isoforms

All Src Isoforms

Biological Activity

Chemical Information

Publications (4)

Solvent & Solubility

Purity & Documentation

References

Help & FAQs

Complete Stock Solution Preparation Table

XL228 Related Classifications

HY-15749 Related Classifications