SZL P1-41

Pricing Availability Delivery Time Qty
Cat.No. 5076 - SZL P1-41 | C24H24N2O3S | CAS No. 222716-34-9
Description: Selective Skp2 inhibitor; suppresses E3 ligase activity
Chemical Name: 3-(2-Benzothiazolyl)-6-ethyl-7-hydroxy-8-(1-piperidinylmethyl)-4H-1-benzopyran-4-one
Purity: ≥98% (HPLC)

Biological Activity

Skp2 inhibitor; thought to prevent assembly of Skp2-Skp1 complexes. Selectively suppresses Skp2 SCF E3 ligase activity but exhibits no effect on the activity of other SCF complexes. Also inhibits Skp2-mediated p27 and Akt ubiquitination in vivo and in vitro. Suppresses the survival of cancer cells and cancer stem cells by triggering cell senescence and inhibiting glycolysis. Exhibits antitumor effects in multiple animal models and cancer cell lines.

Technical Data

M. Wt 420.52
Formula C24H24N2O3S
Storage Store at +4°C
Purity ≥98% (HPLC)
CAS Number 222716-34-9
PubChem ID 1286902
Smiles OC(C(CC)=C2)=C(CN3CCCCC3)C1=C2C(C(C4=NC5=C(C=CC=C5)S4)=CO1)=O

The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.

All Tocris products are intended for laboratory research use only.

Solubility Data

Solvent Max Conc. mg/mL Max Conc. mM
1eq. HCl 8.41 20
DMSO 2.1 5mM with gentle warming

Preparing Stock Solutions

The following data is based on the product molecular weight 420.52. Batch specific molecular weights may vary from batch to batch due to solvent of hydration, which will affect the solvent volumes required to prepare stock solutions.

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Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 2.38 mL 11.89 mL 23.78 mL
5 mM 0.48 mL 2.38 mL 4.76 mL
10 mM 0.24 mL 1.19 mL 2.38 mL
50 mM 0.05 mL 0.24 mL 0.48 mL

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Product Datasheets

Safety Datasheet


References are publications that support the products' biological activity.

Chan et al (2013) Pharmacological inactivation of Skp2 SCF ubiquitin ligase restricts cancer stem cell traits and cancer progression. Cell 154 556 PMID: 3911321

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View all Ubiquitin E3 Ligase Inhibitors

Keywords: SZLP1-41 Selective Skp2 inhibitors inhibits suppresses E3 ligase SCF complexes antitumor p27 Akt ubiquitination cell senescence glycolysis Ubiquitin E3 Ligases

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Literature in this Area

Programmed Cell Death

Programmed Cell Death Poster

There are two currently recognized forms of programmed cell death: apoptosis and necroptosis. This poster summarizes the signaling pathways involved in apoptosis, necroptosis and cell survival following death receptor activation, and highlights the influence of the molecular switch, cFLIP, on cell fate.

Pathways for SZL P1-41


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