TW 37

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Cat.No. 4038 - TW 37 | C33H35NO6S | CAS No. 877877-35-5
Description: Bcl-2 inhibitor; induces apoptosis
Chemical Name: N-[4-[[2-(1,1-Dimethylethyl)phenyl]sulfonyl]phenyl]-2,3,4-trihydroxy-5-[[2-(1-methylethyl)phenyl]methyl]benzamide
Purity: ≥97% (HPLC)

Biological Activity

Bcl-2 inhibitor (Ki values are 0.29 μM and 1.11 μM for Bcl-2 and Bcl-XL respectively). Inhibits the angiogenic potential of endothelial cells in vitro. Induces S-phase arrest and apoptosis in pancreatic cancer cell lines; also inhibits the activation of Notch-1 and Jagged-1 in vitro and in vivo.

Technical Data

M. Wt 573.7
Formula C33H35NO6S
Storage Store at -20°C
Purity ≥97% (HPLC)
CAS Number 877877-35-5
PubChem ID 11455910
Smiles OC1=C(CC2=C(C(C)C)C=CC=C2)C=C(C(NC3=CC=C(S(C4=C(C(C)(C)C)C=CC=C4)(=O)=O)C=C3)=O)C(O)=C1O

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
DMSO 57.37 100
ethanol 2.87 5

Preparing Stock Solutions

The following data is based on the product molecular weight 573.7. 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.

Select a batch to recalculate based on the batch molecular weight:
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.74 mL 8.72 mL 17.43 mL
5 mM 0.35 mL 1.74 mL 3.49 mL
10 mM 0.17 mL 0.87 mL 1.74 mL
50 mM 0.03 mL 0.17 mL 0.35 mL

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Product Datasheets

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References are publications that support the products' biological activity.

Wang et al (2006) Structure-based design of potent small-molecule inhibitors of anti-apoptotic Bcl-2 proteins. J.Med.Chem. 49 6139 PMID: 17034116

Zeitlin et al (2006) Antiangiogenic effect of TW37, a small-molecule inhibitor of Bcl-2. Cancer Res. 66 8698 PMID: 16951185

Ashimori et al (2009) TW-37, a small molecule inhibitor of Bcl-2, mediates S phase cell cycle arrest and suppresses head and neck tumor angiogenesis. Mol.Cancer.Ther. 8 893 PMID: 19372562

Wang et al (2009) TW-37, a small molecule inhibitor of Bcl-2, inhibits cell growth and induces apoptosis in pancreatic cancer: involvement of Notch-1 signaling pathway. Cancer Res. 69 2757 PMID: 19318573

If you know of a relevant reference for TW 37, please let us know.

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Keywords: bcl-2 inhibitors inhibits proapoptotic apoptosis inducers TW37 Bcl-2 Family

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