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Referencia número: HY-175525

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MS44

MS44 is a potent aurora kinase B (AURKB PROTAC) degrader (DC₅₀ = 103 nM). MS44 effectively degrades AURKB in a time- and ubiquitin-proteasome system (UPS)-dependent manner and is selective for AURKB over AURKA and AURKC. MS44 effectively inhibits the proliferation in multiple cancer cell lines and potently induces G2/M arrest. MS44 can be used for the study of AURKB-dependent tumors (Pink: Target protein ligand.
(Pink: Aurora B ligand (HY-175526); Blue: VHL ligand (HY-112078); Black: linker).

Para uso exclusivo en investigación. No vendemos a pacientes.

Pureza: 99.81%
Fòrmula: C₅₇H₇₂FN₁₁O₈S
Peso molecular:1090.31

Almacenamiento:

Powder -20°C, 3 years , 4°C, 2 years ; In solvent -80°C, 6 months , -20°C, 1 month

MS44 Chemical Structure

Tamaño

Precio

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Amount: USD 0.00

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Use of MCE Products

Fluorescent Dye

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

Actividad biológica
- Descripciòn
- IC₅₀ & Target
- In Vitro
Chemical Information
Solvente y solubilidad
- In Vitro
Pureza y Documentación
Referencias
Help & FAQs
Classifications
Bioz

Actividad biológica

Descripciòn

MS44 is a potent aurora kinase B (AURKB PROTAC) degrader (DC₅₀ = 103 nM). MS44 effectively degrades AURKB in a time- and ubiquitin-proteasome system (UPS)-dependent manner and is selective for AURKB over AURKA and AURKC. MS44 effectively inhibits the proliferation in multiple cancer cell lines and potently induces G2/M arrest. MS44 can be used for the study of AURKB-dependent tumors (Pink: Target protein ligand^[1]. (Pink: Aurora B ligand (HY-175526); Blue: VHL ligand (HY-112078); Black: linker).

IC₅₀ & Target^[1]

Aurora B

103 nM (DC₅₀)

VHL

Ver todos los productos específicos de isoformas PROTACs :

Ver todos los productos específicos de isoformas Aurora Kinase :

In Vitro

MS44 (Compound 18) (1 nM-10 μM, 1-96 h) effectively degrades AURKB in a concentration- and time-dependent manner in HPAF-11 cells by hijacking the UPS and also in multiple cancer cell lines^[1].
MS44 (1 μM, 24-96 h) inhibits the proliferation in HPAF-11, K562, U937, CFPAC-1, SW1783 and HT-29 cells^[1].
MS44 (48 h) induces U937 cells G2/M arrest^[1].

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

Cell Proliferation Assay^[1]

Cell Line:

HPAF-11 cells, K562 cells and U937 cells
Concentration:

1 μM
Incubation Time:

24, 48, 72 and 96 h
Result:

Effectively suppressed the proliferation of HPAF-11 cells.

Western Blot Analysis^[1]

Cell Line:

HPAF-11, K562, U937, CFPAC-1, SW1783 and HT-29 cells
Concentration:

1, 3, 10, 30, 100, 300 nM, 1, 3, 10 μM for HPAF-11 and 1 μM for other cells
Incubation Time:

1, 2, 4, 8, 12, and 24 h for HPAF-11 and 24 h for other cells
Result:

Induced significant degradation of AURKB in all cells.
Degraded AURKB in a concentration- and time-dependent manner in HPAF-11 cells by hijacking the UPS.
Selectively degraded AURKB over AURKA and AURKC in HPAF-11 cells.

Chemical Information

Appearance Solid
Peso molecular 1090.31
Fòrmula C₅₇H₇₂FN₁₁O₈S
Color White to off-white
SMILES

CC1=C(SC=N1)C2=CC=C(C=C2)[C@@H](NC([C@@H]3C[C@H](CN3C([C@H](C(C)(C)C)NC(CCCCCCCCC(N(CCCOC4=CC5=NC=NC(NC6=NNC(CC(NC7=CC=CC(F)=C7)=O)=C6)=C5C=C4)CCO)=O)=O)=O)O)=O)C
Envío

Room temperature in continental US; may vary elsewhere.

Almacenamiento

Powder	-20°C	3 years
	4°C	2 years
In solvent	-80°C	6 months
	-20°C	1 month

Solvente y solubilidad

In Vitro:

DMSO : 100 mg/mL (91.72 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

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

0.9172 mL

4.5859 mL

9.1717 mL

5 mM

0.1834 mL

0.9172 mL

1.8343 mL

10 mM

0.0917 mL

0.4586 mL

0.9172 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, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

Calculadora de molaridad

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

Mass Mass

Concentration Concentration

Volume Volume

Molecular Weight Molecular Weight

Calculadora de dilución

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

Concentration _(start) Concentration _(start)

Volume _(start) Volume _(start)

Concentration _(final) Concentration _(final)

Volume _(final) Volume _(final)

Pureza y Documentación

Select Batch:

Pureza: 99.98%

Assay: 99.98%

ee.: 99.98%

Ficha de datos (270 KB)
SDS (252 KB)
- English - EN (252 KB)
- Français - FR (252 KB)
- Deutsch - DE (252 KB)
- Norwegian - NO (252 KB)
- Español - ES (252 KB)
- Swedish - SV (252 KB)
- Italian - IT (252 KB)
- Korean - KR (252 KB)
- Portuguese - PT (252 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)
Instrucciones de manejo (2659 KB)

Referencias

[1]. Hu X, et al. Discovery of the first-in-class Aurora B kinase selective degrader. Eur J Med Chem. 2025 Nov 15;298:118006. [Content Brief]

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, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

Optional Solvent	Concentration Solvent Mass	1 mg	5 mg	10 mg	25 mg
DMSO	1 mM	0.9172 mL	4.5859 mL	9.1717 mL	22.9293 mL
	5 mM	0.1834 mL	0.9172 mL	1.8343 mL	4.5859 mL
	10 mM	0.0917 mL	0.4586 mL	0.9172 mL	2.2929 mL
	15 mM	0.0611 mL	0.3057 mL	0.6114 mL	1.5286 mL
	20 mM	0.0459 mL	0.2293 mL	0.4586 mL	1.1465 mL
	25 mM	0.0367 mL	0.1834 mL	0.3669 mL	0.9172 mL
	30 mM	0.0306 mL	0.1529 mL	0.3057 mL	0.7643 mL
	40 mM	0.0229 mL	0.1146 mL	0.2293 mL	0.5732 mL
	50 mM	0.0183 mL	0.0917 mL	0.1834 mL	0.4586 mL
	60 mM	0.0153 mL	0.0764 mL	0.1529 mL	0.3822 mL
	80 mM	0.0115 mL	0.0573 mL	0.1146 mL	0.2866 mL

Keywords

MOQ

Minimum order quantity

100 mg

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Actividad biológica
- Descripciòn
- IC₅₀ & Target
- In Vitro
Chemical Information
Solvente y solubilidad
- In Vitro
Pureza y Documentación
Referencias

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Referencia número:
Cantidad:
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MS44

Ver todos los productos específicos de isoformas PROTACs

Ver todos los productos específicos de isoformas Aurora Kinase

Actividad biológica

Chemical Information

Solvente y solubilidad

Pureza y Documentación

Referencias

Help & FAQs

Complete Stock Solution Preparation Table

MS44 Related Classifications

HY-175525 Related Classifications