|Source:||The dried fruit of Ziziphus jujuba.|
|Biological Activity or Inhibitors:||1. 3-Epicorosolic acid has a potent inhibitory effect on Epstein-Barr virus early antigen (EBV-EA) induction.
2. 3-Epicorosolic acid shows both potent α-glucosidase and protein tyrosine phosphatase 1B (PTP1B) inhibitory activities with IC50 values of 30.18 and 4.08 μg/ml respectively.
3. 3-Epicorosolic acid shows mixed type inhibition against PTP1B, while it shows uncompetitive inhibition against α-glucosidase; suggests that it has potential antidiabetic activity.
4. 3-Epicorosolic acid possesses the ability to inhibit the expression of one or more inflammatory genes induced by 12-O-tetradecanoylphorbol-13 acetate in mouse skin, it has potential anti-inflammatory activities as well as cancer chemopreventive activity.
|Solvent:||Chloroform, Dichloromethane, Ethyl Acetate, DMSO, Acetone, etc.|
|Storage:||Providing storage is as stated on the product vial and the vial is kept tightly sealed, the product can be stored for up to 24 months(2-8C).
Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20C. Generally, these will be useable for up to two weeks. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.
Need more advice on solubility, usage and handling? Please email to: email@example.com
|After receiving:||The packaging of the product may have turned upside down during transportation, resulting in the natural compounds adhering to the neck or cap of the vial. take the vial out of its packaging and gently shake to let the compounds fall to the bottom of the vial. for liquid products, centrifuge at 200-500 RPM to gather the liquid at the bottom of the vial. try to avoid loss or contamination during handling.|
|1 mg||5 mg||10 mg||20 mg||25 mg|
|1 mM||2.1155 mL||10.5775 mL||21.1551 mL||42.3101 mL||52.8877 mL|
|5 mM||0.4231 mL||2.1155 mL||4.231 mL||8.462 mL||10.5775 mL|
|10 mM||0.2116 mL||1.0578 mL||2.1155 mL||4.231 mL||5.2888 mL|
|50 mM||0.0423 mL||0.2116 mL||0.4231 mL||0.8462 mL||1.0578 mL|
|100 mM||0.0212 mL||0.1058 mL||0.2116 mL||0.4231 mL||0.5289 mL|
Res Pharm Sci. 2014 Jan-Feb;9(1):11-22.
|In vitro antidiabetic potential of the fruits of Crataegus pinnatifida.[Pubmed: 25598795]|
|Seven compounds including hyperoside, chlorogenic acid, ursolic acid, oleanolic acid, 3-Epicorosolic acid, β-sitosterol, β-sitosterol glucoside were isolated from these two fractions. 3-Epicorosolic acid showed both potent α-glucosidase and PTP1B inhibitory activities with IC50 values of 30.18 and 4.08 μg/ml respectively. Moreover, kinetic study revealed that 3-Epicorosolic acid showed mixed type inhibition against PTP1B, while it showed uncompetitive inhibition against α-glucosidase. Therefore, these results suggest that the fruits of C. pinnatifida and its constituents have potential antidiabetic activity which might be used as a functional food for the treatment of diabetes and associated complications.|
Biosci Biotechnol Biochem. 2004 Jan;68(1):85-90.
|Triterpene acids from the leaves of Perilla frutescens and their anti-inflammatory and antitumor-promoting effects.[Pubmed: 14745168]|
|Nine triterpene acids, viz., six of the ursane type, ursolic acid (1), corosolic acid (2), 3-Epicorosolic acid (3), pomolic acid (4), tormentic acid (5) and hyptadienic acid (6), and three of the oleanane type, oleanolic acid (7), augustic acid (8) and 3-epimaslinic acid (9). In addition, an evaluation against the Epstein-Barr virus early antigen (EBV-EA) activation induced by TPA showed five compounds, 1-3, 5 and 9, with a potent inhibitory effect on EBV-EA induction (91-93% inhibition at 1x10(3) mol ratio/TPA).|
Bioorg Med Chem Lett. 2015 Oct 1;25(19):4342-6.
|Synthesis of oxygenated oleanolic and ursolic acid derivatives with anti-inflammatory properties.[Pubmed: 26259803]|
|The scalable syntheses of four oxygenated triterpenes have been implemented to access substantial quantities of maslinic acid, 3-epimaslinic acid, corosolic acid, and 3-Epicorosolic acid. Semi-syntheses proceed starting from the natural products oleanolic acid and ursolic acid. Proceeding over five steps, each of the four compounds can be synthesized on the gram scale. Divergent diastereoselective reductions of α-hydroxy ketones provided access to the four targeted diol containing compounds from two precursors of the oleanane or ursane lineage. These compounds were subsequently evaluated for their ability to inhibit inflammatory gene expression in a mouse model of chemically induced skin inflammation. All compounds possessed the ability to inhibit the expression of one or more inflammatory genes induced by 12-O-tetradecanoylphorbol-13 acetate in mouse skin, however, three of the compounds, corosolic acid, 3-Epicorosolic acid and maslinic acid were more effective than the others. The availability of gram quantities will allow further testing of these compounds for potential anti-inflammatory activities as well as cancer chemopreventive activity.|