Cucurbitacin B 2-O-beta-D-glucosideCAS# 65247-27-0 |
Quality Control & MSDS
Number of papers citing our products
Chemical structure
3D structure
Cas No. | 65247-27-0 | SDF | Download SDF |
PubChem ID | 6441104 | Appearance | Powder |
Formula | C38H56O13 | M.Wt | 720.9 |
Type of Compound | Triterpenoids | Storage | Desiccate at -20°C |
Solubility | Soluble in Chloroform,Dichloromethane,Ethyl Acetate,DMSO,Acetone,etc. | ||
Chemical Name | [(E,6R)-6-hydroxy-6-[(2S,8S,9R,10R,13R,14S,16R,17R)-16-hydroxy-4,4,9,13,14-pentamethyl-3,11-dioxo-2-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-2,7,8,10,12,15,16,17-octahydro-1H-cyclopenta[a]phenanthren-17-yl]-2-methyl-5-oxohept-3-en-2-yl] acetate | ||
SMILES | CC(=O)OC(C)(C)C=CC(=O)C(C)(C1C(CC2(C1(CC(=O)C3(C2CC=C4C3CC(C(=O)C4(C)C)OC5C(C(C(C(O5)CO)O)O)O)C)C)C)O)O | ||
Standard InChIKey | PQOVWWZVVIGRPP-BBANTJNRSA-N | ||
Standard InChI | InChI=1S/C38H56O13/c1-18(40)51-33(2,3)13-12-25(42)38(9,48)30-21(41)15-35(6)24-11-10-19-20(37(24,8)26(43)16-36(30,35)7)14-22(31(47)34(19,4)5)49-32-29(46)28(45)27(44)23(17-39)50-32/h10,12-13,20-24,27-30,32,39,41,44-46,48H,11,14-17H2,1-9H3/b13-12+/t20-,21-,22+,23-,24+,27-,28+,29-,30+,32-,35+,36-,37+,38+/m1/s1 | ||
General tips | For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months. We recommend that you prepare and use the solution on the same day. However, if the test schedule requires, the stock solutions can be prepared in advance, and the stock solution must be sealed and stored below -20℃. In general, the stock solution can be kept for several months. Before use, we recommend that you leave the vial at room temperature for at least an hour before opening it. |
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About Packaging | 1. The packaging of the product may be reversed during transportation, cause the high purity compounds to adhere to the neck or cap of the vial.Take the vail out of its packaging and shake gently until the compounds fall to the bottom of the vial. 2. For liquid products, please centrifuge at 500xg to gather the liquid to the bottom of the vial. 3. Try to avoid loss or contamination during the experiment. |
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Shipping Condition | Packaging according to customer requirements(5mg, 10mg, 20mg and more). Ship via FedEx, DHL, UPS, EMS or other couriers with RT, or blue ice upon request. |
Description | 1. Cucurbitacin B 2-o-β-D-glucoside has anticancer activity. |
Cucurbitacin B 2-O-beta-D-glucoside Dilution Calculator
Cucurbitacin B 2-O-beta-D-glucoside Molarity Calculator
1 mg | 5 mg | 10 mg | 20 mg | 25 mg | |
1 mM | 1.3872 mL | 6.9358 mL | 13.8715 mL | 27.7431 mL | 34.6789 mL |
5 mM | 0.2774 mL | 1.3872 mL | 2.7743 mL | 5.5486 mL | 6.9358 mL |
10 mM | 0.1387 mL | 0.6936 mL | 1.3872 mL | 2.7743 mL | 3.4679 mL |
50 mM | 0.0277 mL | 0.1387 mL | 0.2774 mL | 0.5549 mL | 0.6936 mL |
100 mM | 0.0139 mL | 0.0694 mL | 0.1387 mL | 0.2774 mL | 0.3468 mL |
* Note: If you are in the process of experiment, it's necessary to make the dilution ratios of the samples. The dilution data above is only for reference. Normally, it's can get a better solubility within lower of Concentrations. |
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A biotransformation process for the production of cucurbitacin B from its glycoside using a selected Streptomyces sp.[Pubmed:27145940]
Bioprocess Biosyst Eng. 2016 Sep;39(9):1435-40.
Cucurbitacin B (CuB) and its glycoside, Cucurbitacin B 2-O-beta-D-glucoside (CuBg), abundantly occur in the pedicels of Cucumis melo. Compared with CuB, CuBg is not efficiently extracted from the pedicels. Furthermore, the anticancer activity of CuBg is lower than that of the aglycone. A process for CuBg biotransformation to CuB was developed for the first time. A strain of Streptomyces species that converts CuBg into CuB was isolated from an enrichment culture of C. melo pedicels. After optimization of conditions for enzyme production and biotransformation, a maximum conversion rate of 92.6 % was obtained at a CuBg concentration of 0.25 g/L. When biotransformation was performed on C. melo pedicel extracts, the CuB concentration in the extracts increased from 1.50 to 3.27 g/L. The conversion rate was almost 100 %. The developed process may be an effective biotransformation method for industrial production CuB from C. melo pedicels for pharmaceuticals.