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255056 Cucurbitacin I CAS: 2222-07-3

Specifications
References
CAS Number
2222-07-3
Grade
Highly Purified
Molecular Formula
C30H42O7
Molecular Weight
514.65
EU Commodity Code
38220090
Shipping Temp
Blue Ice
Storage Temp
4°C
(9β,10α,16α,23E)-2,16,20,25-Tetrahydroxy-9-methyl-19-norlanosta-1,5,23-triene-3,11,22-trione; Elatericin B,JSI 124

Cucurbitacin I is a 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.

Synonyms
(9β,10α,16α,23E)-2,16,20,25-Tetrahydroxy-9-methyl-19-norlanosta-1,5,23-triene-3,11,22-trione; Elatericin B,JSI 124
CAS No
2222-07-3
Molecular Formula
C30H42O7
Molecular Weight
514.65
Appearance
White solid
Purity
≥95%
Solubility
DMSO: 10mM; Chloroform, Dichloromethane, Ethyl Acetate, Acetone
Storage and Stability
May be stored at RT for short-term only. Long-term storage is recommended at -20°C. For maximum recovery of product, centrifuge the original vial prior to removing the cap.
References
1. 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, Nefedova et al., Cancer Res., 2005;65:9525|2. Role of signal transducer and activator of transcription-3 in OE-mediated neuroprotection. Dziennis et al., J.Neurosci., 2007;27:7268|3. 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. Blaskovich et al., Cancer Res., 2003;63:1270
USBio References
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