VH298

Catalog No.S8449 Batch:S844901

Technical Data

Formula

C₂₇H₃₃N₅O₄S

Molecular Weight

523.65

CAS No.

2097381-85-4

Solubility (25°C)*

In vitro

DMSO

100 mg/mL (190.96 mM)

Ethanol

100 mg/mL (190.96 mM)

Water

Insoluble

In vivo (Add solvents to the product individually and in order)

Clear solution	5%DMSO 1 40%PEG300 2 5%Tween80 3 50%ddH2O	5.0mg/ml	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.
Clear solution	5% DMSO 1 95% Corn oil	0.625mg/ml	Taking the 1 mL working solution as an example, add 50 μL of 12.5 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.

* <1 mg/ml means slightly soluble or insoluble.
* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.
* Room temperature shipping (Stability testing shows this product can be shipped without any cooling measures.)

Preparing Stock Solutions

Biological Activity

Description

VH298 is a potent VHL (Von Hippel-Lindau, the E3 ligase) inhibitor that stabilizes HIF-α. VH298 blocks the VHL:HIF-α interaction with Kd of 90 nM in isothermal titration calorimetry (ITC) and 80 nM in a competitive fluorescence polarization assay. VH-298 can be used in PROTAC technology.

Targets

VHL:HIF-α ^[1] (competitive fluorescence polarization assay)	VHL:HIF-α ^[1] (isothermal titration calorimetry (ITC))
80 nM(Kd)	90 nM(Kd)

In vitro

VH298 can activate the HIF-1 signalling pathway by stabilizing both forms of HIF-1α in vitro. VH298 promotes rFb variability, migration, and synthesis of collagen and regulatory cell factors. VH298 improves the angiogenesis of hUVEC.^[2]

In vivo

Protocol (from reference)

Cell Assay:^{^[2]}	Cell lines rFb cells, hUVEC cells Concentrations 10 μM, 30 μM, 100 μM, 200 μM Incubation Time 48 h Method The rFb are trypsinised and placed in flat-bottomed 96-well plates at an initial density of 5000 cells per well. After 24 h of incubation, the medium is changed to VH298-containing medium at different dosages (0 μM, 10 μM, 30 μM, 100 μM, and 200 μM). rFb are incubated at 37°C for 48 h. The proliferation is determined by the Cell Counting Kit-8 (CCK-8) assay. After incubation, rFb are treated with the CCK-8 solution at a final concentration of 10% for 2 h at 37°C, followed by measurement of absorbance at 450nm using a microplate reader.
Animal Study:^{^[2]}	Animal Models Sprague-Dawley rats intraperitoneal injected of streptozotocin at 65 mg/kg Dosages 30 μM VH298 in PBS (100 microlitres) Administration local injection

Cell Assay:^{^[2]}

Cell lines
rFb cells, hUVEC cells
Concentrations
10 μM, 30 μM, 100 μM, 200 μM
Incubation Time
48 h
Method
The rFb are trypsinised and placed in flat-bottomed 96-well plates at an initial density of 5000 cells per well. After 24 h of incubation, the medium is changed to VH298-containing medium at different dosages (0 μM, 10 μM, 30 μM, 100 μM, and 200 μM). rFb are incubated at 37°C for 48 h. The proliferation is determined by the Cell Counting Kit-8 (CCK-8) assay. After incubation, rFb are treated with the CCK-8 solution at a final concentration of 10% for 2 h at 37°C, followed by measurement of absorbance at 450nm using a microplate reader.

Animal Study:^{^[2]}

Animal Models
Sprague-Dawley rats intraperitoneal injected of streptozotocin at 65 mg/kg
Dosages
30 μM VH298 in PBS (100 microlitres)
Administration
local injection

References

Selleck's VH298 has been cited by 1 publication

Design, synthesis, and biological evaluation of first-in-class indomethacin-based PROTACs degrading SARS-CoV-2 main protease and with broad-spectrum antiviral activity [ Eur J Med Chem, 2024, 268:116202]	PubMed: 38394929

Design, synthesis, and biological evaluation of first-in-class indomethacin-based PROTACs degrading SARS-CoV-2 main protease and with broad-spectrum antiviral activity [ Eur J Med Chem, 2024, 268:116202]

PubMed: 38394929

RETURN POLICY
Selleck Chemical’s Unconditional Return Policy ensures a smooth online shopping experience for our customers. If you are in any way unsatisfied with your purchase, you may return any item(s) within 7 days of receiving it. In the event of product quality issues, either protocol related or product related problems, you may return any item(s) within 365 days from the original purchase date. Please follow the instructions below when returning products.

SHIPPING AND STORAGE
Selleck products are transported at room temperature. If you receive the product at room temperature, please rest assured, the Selleck Quality Inspection Department has conducted experiments to verify that the normal temperature placement of one month will not affect the biological activity of powder products. After collecting, please store the product according to the requirements described in the datasheet. Most Selleck products are stable under the recommended conditions.

NOT FOR HUMAN, VETERINARY DIAGNOSTIC OR THERAPEUTIC USE.