AlloalantolactoneCAS# 64340-41-6 |
Quality Control & MSDS
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| 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. |
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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 | 1. Alloalantolactone shows activity against M. tuberculosis (32 micrograms/ml). |
| Targets | Antifection |
Alloalantolactone Dilution Calculator
Alloalantolactone Molarity Calculator
| 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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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.
