Mahuannin ECAS# 1173887-70-1 |
Quality Control & MSDS
Number of papers citing our products
Chemical structure
| Cas No. | 1173887-70-1 | SDF | Download SDF |
| PubChem ID | N/A | Appearance | Powder |
| Formula | C30H24O9 | M.Wt | 528.5 |
| Type of Compound | Flavonoids | Storage | Desiccate at -20°C |
| Solubility | Soluble in Chloroform,Dichloromethane,Ethyl Acetate,DMSO,Acetone,etc. | ||
| 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. | ||
The herbs of Ephedra spp.
Mahuannin E Dilution Calculator
Mahuannin E Molarity Calculator
| 1 mg | 5 mg | 10 mg | 20 mg | 25 mg | |
| 1 mM | 1.8921 mL | 9.4607 mL | 18.9215 mL | 37.843 mL | 47.3037 mL |
| 5 mM | 0.3784 mL | 1.8921 mL | 3.7843 mL | 7.5686 mL | 9.4607 mL |
| 10 mM | 0.1892 mL | 0.9461 mL | 1.8921 mL | 3.7843 mL | 4.7304 mL |
| 50 mM | 0.0378 mL | 0.1892 mL | 0.3784 mL | 0.7569 mL | 0.9461 mL |
| 100 mM | 0.0189 mL | 0.0946 mL | 0.1892 mL | 0.3784 mL | 0.473 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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Dimeric proanthocyanidins from the roots of Ephedra sinica.[Pubmed:18975262]
Planta Med. 2008 Dec;74(15):1823-5.
Two new dimeric proanthocyanidins, ephedrannin B ( 2) and Mahuannin E ( 4), along with two known congeners, ephedrannin A ( 1) and mahuannin D ( 3), were isolated from the roots of Ephedra sinica Stapf. Based on NMR, MS, and CD analysis, the structures of the new compounds were deduced to be 5,7,4'-trihydroxyflavan-[4(alpha)-->8,2(alpha)-->O-->7]-kaempferol ( 2) and 5,7,4'-trihydroxyflavan-[4(beta)-->8,2(beta)-->O-->7]- EPI-afzelechin ( 4). The compounds 1 - 4 were evaluated for cytotoxicity against three tumor cell lines (SGC-7901, HepG2, and HeLa), and 2 was found to be significantly active.
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