Erysubin BCAS# 221150-19-2 |
Quality Control & MSDS
Number of papers citing our products
Chemical structure
3D structure
| Cas No. | 221150-19-2 | SDF | Download SDF |
| PubChem ID | 10760434 | Appearance | Yellow powder |
| Formula | C20H16O6 | M.Wt | 352.3 |
| Type of Compound | Flavonoids | Storage | Desiccate at -20°C |
| Solubility | Soluble in Chloroform,Dichloromethane,Ethyl Acetate,DMSO,Acetone,etc. | ||
| Chemical Name | 5-hydroxy-2-(hydroxymethyl)-7-(4-hydroxyphenyl)-2-methylpyrano[3,2-g]chromen-6-one | ||
| SMILES | CC1(C=CC2=C(O1)C=C3C(=C2O)C(=O)C(=CO3)C4=CC=C(C=C4)O)CO | ||
| Standard InChIKey | OVLQTBOVUNAVGU-UHFFFAOYSA-N | ||
| Standard InChI | InChI=1S/C20H16O6/c1-20(10-21)7-6-13-15(26-20)8-16-17(18(13)23)19(24)14(9-25-16)11-2-4-12(22)5-3-11/h2-9,21-23H,10H2,1H3 | ||
| 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 | Erysubin B is a natural product from Erythrina caffra Thunb. |
| Structure Identification | Nat Prod Res. 2014;28(9):667-73.New flavonoids from the stem bark of Erythrina caffra Thunb.[Pubmed: 24665834 ]
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Erysubin B Dilution Calculator
Erysubin B Molarity Calculator
| 1 mg | 5 mg | 10 mg | 20 mg | 25 mg | |
| 1 mM | 2.8385 mL | 14.1924 mL | 28.3849 mL | 56.7698 mL | 70.9622 mL |
| 5 mM | 0.5677 mL | 2.8385 mL | 5.677 mL | 11.354 mL | 14.1924 mL |
| 10 mM | 0.2838 mL | 1.4192 mL | 2.8385 mL | 5.677 mL | 7.0962 mL |
| 50 mM | 0.0568 mL | 0.2838 mL | 0.5677 mL | 1.1354 mL | 1.4192 mL |
| 100 mM | 0.0284 mL | 0.1419 mL | 0.2838 mL | 0.5677 mL | 0.7096 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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New flavonoids from the stem bark of Erythrina caffra Thunb.[Pubmed:24665834]
Nat Prod Res. 2014;28(9):667-73.
Three new flavonoids 5,7-dihydroxy-2',4'-dimethoxy-5'-formylisoflavanone (erycaffra E) (1), 5,7-dihydroxy-3'-(2''-hydroxy-3''-methylbut-3-enyl)-5'-(3'''-hydroxy-3'''-methyl- trans-but-1-enyl)-4'-methoxyflavanone (erycaffra D) (2) and 5,7-dihydroxy-4'-methoxy-3',5'-di-(3''-hydroxy-3''-methyl-trans-but-1-enyl)flavan one (erycaffra F) (3) were isolated from the stem bark of Erythrina caffra along with four known compounds, namely 5,4'-dihydroxy-6-(3''-methylbut-2''-enyl)-5'''-hydroxyisopropyldihydrofurano[2''' ,3''':7,8]isoflavone (isosenegalensein) (4), 5,7-dihydroxy-4'-methoxy-3'-(3''-methylbut-2-enyl)-5'-(3'''-hydroxy-3'''-methylbu t-1-enyl)flavanone (burttinone) (5), 5,4'-dihydroxy-5''-hydroxyisopropyldihydrofurano[2''',3''':7,6]isoflavone (erythrinin C) (6) and 5,4'-dihydroxy-6''-hydroxymethyl-6''-methylpyrano[2'',3'':6,7]isoflavone (Erysubin B) (7). The structures were determined on the basis of spectroscopic data (1D, 2D NMR and MS) and by comparison with literature values.
