8-Epidiosbulbin E acetateCAS# 91095-48-6 |
Quality Control & MSDS
Number of papers citing our products
Chemical structure
3D structure
| Cas No. | 91095-48-6 | SDF | Download SDF |
| PubChem ID | 134715250 | Appearance | Powder |
| Formula | C21H24O7 | M.Wt | 388.40 |
| Type of Compound | Diterpenoids | Storage | Desiccate at -20°C |
| Solubility | Soluble in Chloroform,Dichloromethane,Ethyl Acetate,DMSO,Acetone,etc. | ||
| Chemical Name | [(1R,2S,3S,5S,8S,10S,11R,13R)-8-(furan-3-yl)-10-methyl-6,15-dioxo-7,14-dioxatetracyclo[11.2.1.02,11.05,10]hexadecan-3-yl] acetate | ||
| SMILES | CC(=O)OC1CC2C(=O)OC(CC2(C3C1C4CC(C3)OC4=O)C)C5=COC=C5 | ||
| Standard InChIKey | DYSOIAQEKRDXRB-GFTCARDDSA-N | ||
| Standard InChI | InChI=1S/C21H24O7/c1-10(22)26-16-7-15-20(24)28-17(11-3-4-25-9-11)8-21(15,2)14-6-12-5-13(18(14)16)19(23)27-12/h3-4,9,12-18H,5-8H2,1-2H3/t12-,13+,14+,15+,16-,17-,18+,21-/m0/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. 8-Epidiosbulbin E acetate exhibits time-and dose-dependent liver injury in mice. 2. 8-Epidiosbulbin E acetate exhibits broad-spectrum plasmid-curing activity against multidrug-resistant (MDR) bacteria, including vancomycin-resistant enterococci. |
| Targets | Antifection |
8-Epidiosbulbin E acetate Dilution Calculator
8-Epidiosbulbin E acetate Molarity Calculator
| 1 mg | 5 mg | 10 mg | 20 mg | 25 mg | |
| 1 mM | 2.5747 mL | 12.8733 mL | 25.7467 mL | 51.4933 mL | 64.3666 mL |
| 5 mM | 0.5149 mL | 2.5747 mL | 5.1493 mL | 10.2987 mL | 12.8733 mL |
| 10 mM | 0.2575 mL | 1.2873 mL | 2.5747 mL | 5.1493 mL | 6.4367 mL |
| 50 mM | 0.0515 mL | 0.2575 mL | 0.5149 mL | 1.0299 mL | 1.2873 mL |
| 100 mM | 0.0257 mL | 0.1287 mL | 0.2575 mL | 0.5149 mL | 0.6437 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 potential plasmid-curing agent, 8-epidiosbulbin E acetate, from Dioscorea bulbifera L. against multidrug-resistant bacteria.[Pubmed:18718743]
Int J Antimicrob Agents. 2008 Nov;32(5):405-10.
Bioassay-guided fractionation of an aqueous methanolic extract of Dioscorea bulbifera L. bulbs was performed using organic solvents. A novel plasmid-curing compound was identified as 8-Epidiosbulbin E acetate (EEA) (norditerpene) on the basis of modern spectroscopic analysis and X-ray crystallography. EEA exhibited broad-spectrum plasmid-curing activity against multidrug-resistant (MDR) bacteria, including vancomycin-resistant enterococci. EEA cured antibiotic resistance plasmids (R-plasmids) from clinical isolates of Enterococcus faecalis, Escherichia coli, Shigella sonnei and Pseudomonas aeruginosa with 12-48% curing efficiency. The reference plasmids of Bacillus subtilis (pUB110), E. coli (RP4), P. aeruginosa (RIP64) and Salmonella typhi (R136) were cured with efficiency ranging from 16% to 64%. EEA-mediated R-plasmid curing decreased the minimal inhibitory concentration of antibiotics against MDR bacteria, thus making antibiotic treatment more effective. The antibiotic resistance pattern revealed that the compound was effective in the reversal of bacterial resistance to various antibiotics. In addition, the compound did not show any cytotoxicity against a broad range of human cancer cell lines, namely MCF-7 (breast cancer), SiHa (cervical cancer) and A431 (epidermal carcinoma), and hence has the potential to be used as a lead compound for drug discovery programmes.
Role of Metabolic Activation in 8-Epidiosbulbin E Acetate-Induced Liver Injury: Mechanism of Action of the Hepatotoxic Furanoid.[Pubmed:26886724]
Chem Res Toxicol. 2016 Mar 21;29(3):359-66.
8-Epidiosbulbin E acetate (EEA), a furanoid, was unexpectedly found to be the most abundant diterpenoid lactone in certain varieties of Dioscorea bulbifera L. (DB), a traditional herbal medicine widely used in Asian nations. This herb has been reported to cause liver injury in humans and experimental animals. The occurrence of EEA in DB was dependent on its commercial source. The present study shows that EEA exhibits time- and dose-dependent liver injury in mice. Pretreatment with ketoconazole prevented the animals from developing EEA-induced liver injury, caused 7- and 13-fold increases in the plasma Cmax and AUC of EEA, and decreased urinary excretion of glutathione conjugates derived from EEA. Pretreatment with buthionine sulfoximine exacerbated EEA-induced hepatotoxicity. In order to define the role of EEA's furan moiety in EEA-induced hepatotoxicity, we synthesized tetrahydro-EEA by catalytic hydrogenation of the furan moiety. No liver injury was observed in the animals given the same doses of tetrahydro-EEA as those used with EAA. The results indicate that EEA itself does not appear to be hepatotoxic but that the electrophilic intermediate generated by the metabolic activation of the furan ring mediated by cytochromes P450 is responsible for EEA-induced liver injury.
