C8499

Cucurbitacin B hydrate

≥97% (HPLC)

• Synonyme(s) : (2β,9β,10α,16α,23E)-25-(acetyloxy)-2,16,20-trihydroxy-9-methyl-19-Norlanosta-5,23-diene-3,11,22-trione
• Formule empirique (notation de Hill): C₃₂H₄₆O₈ · xH₂O
• Numéro CAS: 6199-67-3
• Poids moléculaire : 558.70 (anhydrous basis)
• Numéro MDL: MFCD07778083
• Code UNSPSC : 12352200
• ID de substance PubChem : 329775173
• Nomenclature NACRES : NA.77

Propriétés

• Niveau de qualité: 100
• Essai: ≥97% (HPLC)
• Forme: powder
• Couleur: white to beige
• Solubilité: DMSO: 10 mg/mL, clear
• Température de stockage: 2-8°C
• Chaîne SMILES: CC1(C)C([C@@H](O)C[C@]2([H])C1=CC[C@]([C@@](C[C@@H](O)[C@]3([H])[C@@](C)(O)C(/C=C/C(C)(C)OC(C)=O)=O)(C)[C@]3(C)C4)([H])[C@@]2(C)C4=O)=O
• InChI: 1S/C32H46O8/c1-17(33)40-27(2,3)13-12-23(36)32(9,39)25-21(35)15-29(6)22-11-10-18-19(14-20(34)26(38)28(18,4)5)31(22,8)24(37)16-30(25,29)7/h10,12-13,19-22,25,34-35,39H,11,14-16H2,1-9H3/b13-12+/t19-,20+,21-,22+,25+,29+,30-,31+,32+/m1/s1
• Clé InChI: IXQKXEUSCPEQRD-DKRGWESNSA-N

Description

Application

Cucurbitacin B hydrate has been used:

• as a signal transducer and activator of transcription 3 (stat3) inhibitor to determine its effect on the expression of human lysosomal acid lipase (hLAL) in myeloid-derived suppressor cells (MDSCs).[1]
• as an ecdysone receptor (EcR) antagonist injection to lower the levels of 20-hydoxyecdysone (20E) signaling in butterflies.[2]
• to determine its effect on the cell viability of pancreatic cancer cell lines.[3]

Actions biochimiques/physiologiques

Cucurbitacin B also exhibits anti-cancer activity by inhibiting telomerase and c-Myc in breast cancer. It also exhibits anti- artherosclerotic activity.[4] Cucurbitacin B also possesses anti-inflammatory and anti-microbial activity.[5]

Cucurbitacin B is a triterpenoid constituent of Cucurbitaceae plant species. Cucurbitacin B inhibits proliferation in a wide variety of tumor cell lines (IC50 15-30 nM) by inducing apoptosis and inducing cell cycle arrest at G2/M phase. Although the mechanism of action is unclear, Cucurbitacin B inhibits STAT 3 phosphorylation and expression levels and has been shown to block JAK2 activity. Curcubitacin B also inhibits the transcriptional activity of HIF1a and Nf-KB. Curcubitacin B is structurally similar to the JAK inhibitor Curcubitacin I.

Cucurbitacin B is an inhibitor of the STAT 3 pathway.

Caractéristiques et avantages

This compound is a featured product for Kinase Phosphatase Biology research. Click here to discover more featured Kinase Phosphatase Biology products. Learn more about bioactive small molecules for other areas of research at sigma.com/discover-bsm.

This compound is featured on the JAKs page of the Handbook of Receptor Classification and Signal Transduction. To browse other handbook pages, click here.

Informations sur la sécurité

• Pictogrammes: GHS06
• Mention d'avertissement: Danger
• Mentions de danger: H300
• Conseils de prudence: P264 - P270 - P301 + P310 - P405 - P501
• Classification des risques: Acute Tox. 2 Oral
• Code de la classe de stockage: 6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
• Classe de danger pour l'eau (WGK): WGK 3
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable