8-Epixanthatin

CAS# 30890-35-8

8-Epixanthatin

Catalog No. BCN7782----Order now to get a substantial discount!

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8-Epixanthatin: 5mg $851 In Stock
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Quality Control of 8-Epixanthatin

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Chemical structure

8-Epixanthatin

3D structure

Chemical Properties of 8-Epixanthatin

Cas No. 30890-35-8 SDF Download SDF
PubChem ID 11694445 Appearance Powder
Formula C15H18O3 M.Wt 246.30
Type of Compound Sesquiterpenoids Storage Desiccate at -20°C
Solubility Soluble in Chloroform,Dichloromethane,Ethyl Acetate,DMSO,Acetone,etc.
Chemical Name (3aR,7S,8aR)-7-methyl-3-methylidene-6-[(E)-3-oxobut-1-enyl]-4,7,8,8a-tetrahydro-3aH-cyclohepta[b]furan-2-one
SMILES CC1CC2C(CC=C1C=CC(=O)C)C(=C)C(=O)O2
Standard InChIKey RBRPTFMVULVGIC-MDKNCZOUSA-N
Standard InChI InChI=1S/C15H18O3/c1-9-8-14-13(11(3)15(17)18-14)7-6-12(9)5-4-10(2)16/h4-6,9,13-14H,3,7-8H2,1-2H3/b5-4+/t9-,13+,14+/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 8-Epixanthatin

The root exudates of sunflower.

Biological Activity of 8-Epixanthatin

Description1. 8-Epixanthatin can induce germination of O. cumana at nano- to micromolar concentrations. 2. 8-Epixanthatin, a light-induced growth inhibitor, mediates the phototropic curvature in sunflower (Helianthus annuus) hypocotyls. 3. 8-Epixanthatin has antiprotozoal activity.
TargetsAntifection

8-Epixanthatin Dilution Calculator

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8-Epixanthatin Molarity Calculator

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Preparing Stock Solutions of 8-Epixanthatin

1 mg 5 mg 10 mg 20 mg 25 mg
1 mM 4.0601 mL 20.3004 mL 40.6009 mL 81.2018 mL 101.5022 mL
5 mM 0.812 mL 4.0601 mL 8.1202 mL 16.2404 mL 20.3004 mL
10 mM 0.406 mL 2.03 mL 4.0601 mL 8.1202 mL 10.1502 mL
50 mM 0.0812 mL 0.406 mL 0.812 mL 1.624 mL 2.03 mL
100 mM 0.0406 mL 0.203 mL 0.406 mL 0.812 mL 1.015 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 8-Epixanthatin

The antiprotozoal activity of sixteen asteraceae species native to Sudan and bioactivity-guided isolation of xanthanolides from Xanthium brasilicum.[Pubmed:19431098]

Planta Med. 2009 Oct;75(12):1363-8.

In vitro screening of the dichloromethane extracts of 16 Asteraceae species native to Sudan for activity against major protozoan pathogens revealed that a Xanthium brasilicum Vell. [syn. X. strumarium var. brasilicum (Vell.) Baker in Mart.] extract was the most active against Trypanosoma brucei rhodesiense, the etiological agent of East African human trypanosomiasis (IC(50) = 0.1 microg/mL). This plant extract also exhibited noticeable activities against T. cruzi (Chagas disease), Leishmania donovani (Kala-Azar) as well as Plasmodium falciparum (Malaria tropica). Bioactivity-guided fractionation resulted in the isolation of four bioactive sesquiterpene lactones (STL) of the xanthanolide series (4,5-seco-guaianolide-type). They were identified by spectroscopic means as 8-Epixanthatin (1), 8-Epixanthatin 1beta,5beta-epoxide (2), and as the dimers pungiolide A (4) as well as pungiolide B (5). Two further modified xanthanolide sesquiterpene lactones, xanthipungolide (3) and 4,15-dinor-1,11(13)-xanthadiene-3,5beta:12,8beta-diolide (6) were isolated. While xanthipungolide turned out to be inactive against the tested parasites, the dinor-xanthanlide showed significant activity against T. brucei rhodesiense and L. donovani. All isolated compounds were previously known from other Xanthium species but this is the first report on their occurrence in X. brasilicum, and, most notably, on their antiprotozoal activity. As the most active single compound from this extract, 8-Epixanthatin 1beta,5beta-epoxide showed IC(50) values of 0.09, 2.95, 0.16 and 1.71 microg/mL (0.33, 11.3, 0.6 and 6.5 microM) against T. brucei rhodesiense, T. cruzi, L. donovani and P. falciparum, respectively, while its cytotoxicity against rat myoblast cells used as control was determined at 5.8 microg/mL (22.1 microM). Besides assessment of their antiprotozoal activity, the structural assignments for the dimeric xanthanolides pungiolide A and B were reinvestigated and fully established.

New sesquiterpene lactones from sunflower root exudate as germination stimulants for Orobanche cumana.[Pubmed:24117219]

J Agric Food Chem. 2013 Nov 6;61(44):10481-7.

Orobanche cumana is a serious threat for cultivation of sunflower in Europe and Asia. Germination of the parasite is induced by metabolites released from the host root system. The first germination stimulant from sunflower root exudate was recently identified as dehydrocostus lactone, a sesquiterpene lactone. Bioassay-guided fractionation of root exudates now showed the release of additional sesquiterpene lactones. Besides dehydrocostus lactone, costunolide, tomentosin, and 8-Epixanthatin were purified and identified spectroscopically. All four compounds induced germination of O. cumana at nano- to micromolar concentrations. Costunolide and dehydrocostus lactone concentrations above 1 muM reduced the activity, and application of 100 muM inhibited germination irreversibly. Seeds of Phelipanche ramosa could not be induced with costunolide. O. cumana seeds also germinated with GR24, a synthetic strigolactone. No bioactive fraction of sunflower contained compounds of this type. This supports previous findings that sesquiterpene lactones instead of strigolactones trigger the sunflower/O. cumana interaction.

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