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Tocris/Cucurbitacin I/1571/1/1 mg

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货号: 1571/1

品牌: Tocris

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Description: Selective inhibitor of STAT3/JAK2 signaling

Alternative Names: Elatericin B, JSI 124

Chemical Name: (9β,10α,16α,23E)-2,16,20,25-Tetrahydroxy-9-methyl-19-norlanosta-1,5,23-triene-3,11,22-trione

Purity: ≥98% (HPLC)

Biological Activity Technical Data Solubility Calculators Datasheets References

Biological Activity

Selective inhibitor of STAT3/JAK2 signaling. Inhibits the activation of STAT3 and JAK2 and displays no activity on Src, Akt, ERK and JNK. Suppresses phosphotyrosine levels of STAT3, inhibits STAT3 DNA binding and STAT3-mediated gene expression. Induces apoptosis in cell lines expressing constitutively active tyrosine-phosphorylated STAT3.

Technical Data

M. Wt	514.65
Formula	C₃₀H₄₂O₇
Storage	Store at -20°C
Purity	≥98% (HPLC)
CAS Number	2222-07-3
PubChem ID	5281321
InChI Key	NISPVUDLMHQFRQ-MKIKIEMVSA-N
Smiles	OC(C)(C)/C=C/C([C@@](O)(C)[C@@]3([H])[C@H](O)C[C@@]([C@@](C)3C4)(C)[C@]2([H])CC=C1C(C)(C)C(C(O)=C[C@]([H])1[C@@](C)2C4=O)=O)=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
Solubility
	DMSO	5.15	10
	ethanol	10.29	20

Preparing Stock Solutions

The following data is based on the product molecular weight 514.65. 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.

Concentration / Solvent Volume / Mass	1 mg	5 mg	10 mg
1 mM	1.94 mL	9.72 mL	19.43 mL
5 mM	0.39 mL	1.94 mL	3.89 mL
10 mM	0.19 mL	0.97 mL	1.94 mL
50 mM	0.04 mL	0.19 mL	0.39 mL

Product Datasheets

Certificate of Analysis / Product Datasheet

Safety Datasheet

References

References are publications that support the products' biological activity.

Blaskovich et al (2003) Discovery of JSI-124 (cucurbitacin I), a selective janus kinase/signal transducer and activator of transcription 3 signaling pathway inhibitor with potent antitumor activity against human and murine cancer cells in mice. Cancer Res. 63 1270 PMID: 12649187

Nefedova et al (2005) Regulation of dendritic cell differentiation and antitumor immune response in cancer by pharmacologic-selective inhibition of the janus-activated kinase 2/signal transducers and activators of transcription 3 pathway. Cancer Res. 65 9525 PMID: 16230418

Dziennis et al (2007) Role of signal transducer and activator of transcription-3 in estradiol-mediated neuroprotection. J.Neurosci. 27 7268 PMID: 17611279

Keywords: Cucurbitacin I, supplier, Selective, inhibitors, inhibits, STAT3/JAK2, signaling, signalling, Janus, Activated, Kinase, JAK, Kinases, Signal, Transducers, activators, Transcription, STAT, CucurbitacinI, ElatericinB, JSI124, Elatericin, B, JSI, 124, JAK, Kinase, STAT, JAK, Kinase, Tocris Bioscience

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