Alloalantolactone

CAS# 64340-41-6

Alloalantolactone

Catalog No. BCN8091----Order now to get a substantial discount!

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Quality Control of Alloalantolactone

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Chemical structure

Alloalantolactone

3D structure

Chemical Properties of Alloalantolactone

Cas No. 64340-41-6 SDF Download SDF
PubChem ID 474518 Appearance Powder
Formula C15H20O2 M.Wt 232.32
Type of Compound Sesquiterpenoids Storage Desiccate at -20°C
Solubility Soluble in Chloroform,Dichloromethane,Ethyl Acetate,DMSO,Acetone,etc.
Chemical Name (3aR,8aR,9aR)-5,8a-dimethyl-3-methylidene-4,6,7,8,9,9a-hexahydro-3aH-benzo[f][1]benzofuran-2-one
SMILES CC1=C2CC3C(CC2(CCC1)C)OC(=O)C3=C
Standard InChIKey OTDVFDVEFZSECW-UXIGCNINSA-N
Standard InChI InChI=1S/C15H20O2/c1-9-5-4-6-15(3)8-13-11(7-12(9)15)10(2)14(16)17-13/h11,13H,2,4-8H2,1,3H3/t11-,13-,15-/m1/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 Alloalantolactone

The roots of Inula helenium

Biological Activity of Alloalantolactone

Description1. Alloalantolactone shows activity against M. tuberculosis (32 micrograms/ml).
TargetsAntifection

Alloalantolactone Dilution Calculator

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Alloalantolactone Molarity Calculator

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Preparing Stock Solutions of Alloalantolactone

1 mg 5 mg 10 mg 20 mg 25 mg
1 mM 4.3044 mL 21.522 mL 43.0441 mL 86.0882 mL 107.6102 mL
5 mM 0.8609 mL 4.3044 mL 8.6088 mL 17.2176 mL 21.522 mL
10 mM 0.4304 mL 2.1522 mL 4.3044 mL 8.6088 mL 10.761 mL
50 mM 0.0861 mL 0.4304 mL 0.8609 mL 1.7218 mL 2.1522 mL
100 mM 0.043 mL 0.2152 mL 0.4304 mL 0.8609 mL 1.0761 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 Alloalantolactone

Antimycobacterial eudesmanolides from Inula helenium and Rudbeckia subtomentosa.[Pubmed:10364842]

Planta Med. 1999 May;65(4):351-5.

In a bioassay guided search for antimycobacterial compounds from higher plants, the root extracts of Elecampane (Inula helenium L.; Asteraceae) and Sweet Coneflower (Rudbeckia subtomentosa Pursh.; Asteraceae) were chemically investigated for their active constituents. Chromatographic fractions of root extracts of l. helenium, which exhibited significant activity against Mycobacterium tuberculosis, provided the known eudesmanolides alantolactone, isoalantolactone, and 11 alpha H, 13-dihydroisoalantolactone. Peracid epoxidation of alantolactone and isoalantolactone provided 5 alpha-epoxyalantolactone and 4(15) alpha-epoxyisoalantolactone, respectively and oxidation of alantolactone with OsO4 gave 11,13-dihydroxyalantolactone. Active fractions from R subtomentosa contained the known Alloalantolactone and 3-oxoAlloalantolactone. The structures of the above compounds were established by spectroscopic methods including 1D and 2D NMR techniques as well as spectral comparison with previously reported data. The molecular structure of 5 alpha-epoxyalantolactone was determined by single crystal X-ray diffraction. Eleven natural and semisynthetic eudesmanolides were tested in a radiorespirometric bioassay for activity against M. tuberculosis. 5 alpha-Epoxyalantolactone and encelin from Montanoa speciosa showed minimum inhibitory concentrations (MICs) of 8 and 16 micrograms ml-1, respectively. Alantolactone, isoalantolactone and its 4 alpha, 15-epoxide, 1,2-dehydro-3-epi-isotelekin and Alloalantolactone gave MICs of 32 micrograms ml-1. All other compounds showed MIC values of 128 micrograms ml-1 or higher.

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