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Erythrabyssin II

CAS# 77263-06-0

Erythrabyssin II

Catalog No. BCN4828----Order now to get a substantial discount!

Product Name & Size Price Stock
Erythrabyssin II: 5mg $690 In Stock
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Quality Control of Erythrabyssin II

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Chemical structure

Erythrabyssin II

3D structure

Chemical Properties of Erythrabyssin II

Cas No. 77263-06-0 SDF Download SDF
PubChem ID 10408212 Appearance Powder
Formula C25H28O4 M.Wt 392.5
Type of Compound Phenols Storage Desiccate at -20°C
Solubility Soluble in Chloroform,Dichloromethane,Ethyl Acetate,DMSO,Acetone,etc.
Chemical Name (6aR,11aR)-2,10-bis(3-methylbut-2-enyl)-6a,11a-dihydro-6H-[1]benzofuro[3,2-c]chromene-3,9-diol
SMILES CC(=CCC1=C(C=C2C(=C1)C3C(CO2)C4=C(O3)C(=C(C=C4)O)CC=C(C)C)O)C
Standard InChIKey LDKAMVCGTURXMH-CPJSRVTESA-N
Standard InChI InChI=1S/C25H28O4/c1-14(2)5-7-16-11-19-23(12-22(16)27)28-13-20-17-9-10-21(26)18(8-6-15(3)4)24(17)29-25(19)20/h5-6,9-12,20,25-27H,7-8,13H2,1-4H3/t20-,25-/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.
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.
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.

Source of Erythrabyssin II

The herbs of Erythrina arborescens

Biological Activity of Erythrabyssin II

Description1. Erythrabyssin II actives against several strains of Staphylococcus and Streptococcus with an MIC range of 0.78-1.56 microg/ml. 2. Erythrabyssin II inhibits bacterial neuraminidase in a dose-dependent manner with significant inhibition (IC(50)=0.09-3.25 μM).
TargetsAntifection

Erythrabyssin II Dilution Calculator

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Erythrabyssin II Molarity Calculator

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Preparing Stock Solutions of Erythrabyssin II

1 mg 5 mg 10 mg 20 mg 25 mg
1 mM 2.5478 mL 12.7389 mL 25.4777 mL 50.9554 mL 63.6943 mL
5 mM 0.5096 mL 2.5478 mL 5.0955 mL 10.1911 mL 12.7389 mL
10 mM 0.2548 mL 1.2739 mL 2.5478 mL 5.0955 mL 6.3694 mL
50 mM 0.051 mL 0.2548 mL 0.5096 mL 1.0191 mL 1.2739 mL
100 mM 0.0255 mL 0.1274 mL 0.2548 mL 0.5096 mL 0.6369 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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References on Erythrabyssin II

Antibacterial pterocarpans from Erythrina subumbrans.[Pubmed:17055201]

J Ethnopharmacol. 2007 Mar 1;110(1):171-5.

Seven pterocarpans, erybraedin B (1), erybraedin A (2), phaseollin (3), Erythrabyssin II (4), erystagallin A (5), erythrabissin-1 (6) and erycristagallin (7), two flavanones, 5-hydroxysophoranone (8) and glabrol (9), and one isoflavone, erysubin F (10), were isolated from the stems of Erythrina subumbrans (Leguminosae). Their structures were identified by means of spectroscopy. This is the first report of the isolation of the non-alkaloidal compounds from Erythrina subumbrans and the observed dehydration of 6a-hydroxypterocarpans 5 and 6 in CDCl(3) to the corresponding pterocarpenes 11 and 12, respectively. Compounds 8 and 9 were isolated for the first time from the genus Erythrina. Compounds 2 and 4 exhibited the highest degree of activity against Streptococcus strains with an MIC range of 0.78-1.56 microg/ml, whereas compound 7 exhibited the highest degree of activity against Staphylococcus strains, including drug-resistant strains (MRSA and VRSA), with an MIC range of 0.39-1.56 microg/ml. Interestingly, compounds 2, 4, 5 and 7 were more active against several strains of Streptococcus and Staphylococcus than the standard antibiotics vancomycin and oxacillin. Compound 7 showed the highest level of activity against all VRSA strains tested, with an MIC range of 0.39-1.56 microg/ml, which were resistant to both antibiotics. These compounds may prove to be potent phytochemical agents for antibacterial activity, especially against the MRSA and VRSA strains.

Potent inhibition of bacterial neuraminidase activity by pterocarpans isolated from the roots of Lespedeza bicolor.[Pubmed:21911291]

Bioorg Med Chem Lett. 2011 Oct 15;21(20):6100-3.

Bacterial neuraminidase has been highlighted as a key enzyme for pathogenic infection and sepsis. Six pterocarpans displaying significant levels of neuraminidase inhibitory activity were isolated from the root bark of Lespedeza bicolor. The isolated compounds were identified as three new pterocarpans (1-3) together with known compounds Erythrabyssin II (4), lespebuergine G4 (5), and 1-methoxyErythrabyssin II (6). The new compounds were characterized as bicolosin A (1), bicolosin B (2), and bicolosin C (3). All compounds inhibited bacterial neuraminidase in a dose-dependent manner with significant inhibition (IC(50)=0.09-3.25 muM). All neuraminidase inhibitors screened were found to exhibit noncompetitive kinetics. The three most potent neuraminidase inhibitors (1, 3 and 6) feature a methoxy substitution on C-1.

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