Viscosalactone BCAS# 76938-46-0 |
Quality Control & MSDS
Number of papers citing our products
Chemical structure
3D structure
| Cas No. | 76938-46-0 | SDF | Download SDF |
| PubChem ID | 57403080 | Appearance | Powder |
| Formula | C28H40O7 | M.Wt | 488.61 |
| Type of Compound | Steroids | Storage | Desiccate at -20°C |
| Solubility | Soluble in Chloroform,Dichloromethane,Ethyl Acetate,DMSO,Acetone,etc. | ||
| SMILES | CC1=C(C(=O)OC(C1)C(C)C2CCC3C2(CCC4C3CC5C6(C4(C(=O)CC(C6O)O)C)O5)C)CO | ||
| Standard InChIKey | WVMINIQLCDVTLH-IVFYTCICSA-N | ||
| Standard InChI | InChI=1S/C28H40O7/c1-13-9-21(34-25(33)16(13)12-29)14(2)17-5-6-18-15-10-23-28(35-23)24(32)20(30)11-22(31)27(28,4)19(15)7-8-26(17,18)3/h14-15,17-21,23-24,29-30,32H,5-12H2,1-4H3/t14-,15-,17+,18-,19-,20-,21+,23+,24-,26+,27-,28-/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. |
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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. Viscosalactone B shows selective COX-2 enzyme inhibition. 2. Viscosalactone B shows antiproliferative activity on NCI-H460 (Lung), HCT-116 (Colon), SF-268 (Central Nervous System; CNS and MCF-7 (Breast) human tumor cell lines. |
| Targets | COX |
Viscosalactone B Dilution Calculator
Viscosalactone B Molarity Calculator
| 1 mg | 5 mg | 10 mg | 20 mg | 25 mg | |
| 1 mM | 2.0466 mL | 10.2331 mL | 20.4662 mL | 40.9324 mL | 51.1656 mL |
| 5 mM | 0.4093 mL | 2.0466 mL | 4.0932 mL | 8.1865 mL | 10.2331 mL |
| 10 mM | 0.2047 mL | 1.0233 mL | 2.0466 mL | 4.0932 mL | 5.1166 mL |
| 50 mM | 0.0409 mL | 0.2047 mL | 0.4093 mL | 0.8186 mL | 1.0233 mL |
| 100 mM | 0.0205 mL | 0.1023 mL | 0.2047 mL | 0.4093 mL | 0.5117 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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Growth inhibition of human tumor cell lines by withanolides from Withania somnifera leaves.[Pubmed:14575818]
Life Sci. 2003 Nov 21;74(1):125-32.
Ayurvedic medicines prepared in India consist of Withania somnifera roots as one of the main ingredients. It is consumed as a dietary supplement around the world. The leaves of W. somnifera were used in the treatment of tumors and inflammation in several Asian countries. We have isolated twelve withanolides such as withaferin A (1), sitoindoside IX (2), 4-(1-hydroxy-2, 2-dimethylcyclpropanone)-2, 3-dihydrowithaferin A (3), 2, 3-dihydrowithaferin A (4), 24, 25-dihydro-27-desoxywithaferin A (5), physagulin D (1-->6)-beta-D-glucopyranosyl- (1-->4)-beta-D-glucopyranoside (6), 27-O-beta-D-glucopyranosylphysagulin D (7), physagulin D (8), withanoside IV (9), and 27-O-beta-D-glucopyranosylViscosalactone B (10), 4, 16-dihydroxy-5beta, 6beta-epoxyphysagulin D (11), Viscosalactone B (12) from the leaves of this species. Compounds 1-12 and diacetylwithaferin A (13) were tested for their antiproliferative activity on NCI-H460 (Lung), HCT-116 (Colon), SF-268 (Central Nervous System; CNS and MCF-7 (Breast) human tumor cell lines. The inhibitory concentration to afford 50% cell viability (IC50) for these compounds was determined by MTT (3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide) assay. Withaferin A and its derivatives exhibited inhibitory concentrations (50%) ranging from 0.24 +/- 0.01 to 11.6 +/- 1.9 microg/mL. Viscosalactone B (12) showed the 50% inhibition at concentrations ranging from 0.32 +/- 0.05 to 0.47 +/- 0.15 microg/mL whereas its 27-O-glucoside derivative (10) exhibited IC50 between 7.9 +/- 2.9 and 17.3 +/- 3.9 microg/ml. However, Physagulin D type withanolides showed either weak or no activity at 30 microg/mL. Therefore, incorporation of withanolides in the diet may prevent or decrease the growth of tumors in human.
