Catalog No.S7898

GSK621 Chemical Structure

Molecular Weight(MW): 489.91

GSK621 is a specific and potent AMPK activator.

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  • Human glioma U87MG cells (A-C) and U251MG cells (D), as well as HCN-1a neuronal cells (D) or primary human astrocytes (“Astrocytes”, D) were either left untreated (“C”) or treated with applied concentrations of GSK621 for indicated periods of time, cell survival was tested by MTT assay (A and D) and clonogenicity assay (B); Cell death was also tested by the trypan blue staining assay (C). Experiments in this figure were repeated four times, and similar results were obtained. Data were presented as mean ± SD. * p <0.05 vs. “C”.

    PLoS One, 2016, 11(8):e0161017.. GSK621 purchased from Selleck.

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Biological Activity

Description GSK621 is a specific and potent AMPK activator.
AMPK [1]
(Cell-free assay)
In vitro

In AML cell lines and primary AML samples, GSK621 markedly increases phosphorylation at AMPKα T172, a marker of AMPK activation. In a set of 20 cell lines, GSK621 reduces the proliferation of all 20 lines with IC50 ranged from 13-30 μM, and increases apoptosis in 17 (85%) lines. In addition, GSK621 also triggers autophagy, which partially contributes to AML cell death. [1]

In vivo In nude mice bearing MOLM-14 xenografts, GSK621 (30 mg/kg, i.p.) reduces leukemia growth and significantly extends survival by enhancing AMPK activity and the induction of apoptosis. [1]


Kinase Assay:


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AMPK enzymatic assay:

HEPG2 cells are treated with increasing doses of A-769662 or GSK621, and ACC S79 phosphorylation is assessed as a surrogate marker for AMPK activation using a commercially available ELISA kit.
Cell Research:


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  • Cell lines: MV4-11, OCI-AML3, OCI-AML2, HL-60, Kasumi, HEL, UT7, NB4, TF-1, KG1A, Nomo p28, SKM-1, U937, YHP1, MOLM-14, Mo7e, K562, MOLM-13, EOL-1, SET-2 cell lines
  • Concentrations: ~30 μM
  • Incubation Time: ~4 d
  • Method:

    Twenty AML cell lines are treated with log10 dilutions of GSK621 and relative viability is determined by CellTiter-Glo?assay. IC50 of GSK621 among these 20 cell lines is calculated using the Prism software and are presented as log[C] with [C] in mol/l (M). Results are presented for 5 different cell lines per panel.

    (Only for Reference)
Animal Research:


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  • Animal Models: NUDE Mice bearing MOLM-14 Xenografts
  • Formulation: --
  • Dosages: 30 mg/kg, twice daily
  • Administration: i.p.
    (Only for Reference)

Solubility (25°C)

In vitro DMSO 97 mg/mL (197.99 mM)
Water Insoluble
Ethanol Insoluble
In vivo Add solvents to the product individually and in order(Data is from Selleck tests instead of citations):
2% DMSO+30% PEG 300+5% Tween 80+ddH2O
For best results, use promptly after mixing.

* 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.

Chemical Information

Molecular Weight 489.91


CAS No. 1346607-05-3
Storage powder
in solvent
Synonyms N/A

Bio Calculators

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Calculate the mass, volume or concentration required for a solution. The Selleck molarity calculator is based on the following equation:

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

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Calculate the dilution required to prepare a stock solution. The Selleck dilution calculator is based on the following equation:

Concentration (start) x Volume (start) = Concentration (final) x Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2 ( Input Output )

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* When preparing stock solutions always use the batch-specific molecular weight of the product found on the vial label and MSDS / COA (available online).

The Serial Dilution Calculator Equation

  • Serial Dilutions

  • Computed Result

  • C1=C0/X C1: LOG(C1):
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Tech Support

Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.

Handling Instructions

Tel: +1-832-582-8158 Ext:3

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AMPK Signaling Pathway Map

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Cell Lines Assay Type Concentration Incubation Time Formulation Activity Description PMID