Neobritannilactone BCAS# 886990-00-7 |
- Eupatolide
Catalog No.:BCN7345
CAS No.:6750-25-0
Quality Control & MSDS
Number of papers citing our products
Chemical structure
3D structure
| Cas No. | 886990-00-7 | SDF | Download SDF |
| PubChem ID | 12299961 | Appearance | Powder |
| Formula | C15H20O3 | M.Wt | 248.3 |
| Type of Compound | Sesquiterpenoids | Storage | Desiccate at -20°C |
| Solubility | Soluble in Chloroform,Dichloromethane,Ethyl Acetate,DMSO,Acetone,etc. | ||
| Chemical Name | (3aR,4S,6E,10E,11aR)-4-hydroxy-6,10-dimethyl-3-methylidene-3a,4,5,8,9,11a-hexahydrocyclodeca[b]furan-2-one | ||
| SMILES | CC1=CC2C(C(CC(=CCC1)C)O)C(=C)C(=O)O2 | ||
| Standard InChIKey | PDEJECFRCJOMEN-WQURXQIUSA-N | ||
| Standard InChI | InChI=1S/C15H20O3/c1-9-5-4-6-10(2)8-13-14(12(16)7-9)11(3)15(17)18-13/h5,8,12-14,16H,3-4,6-7H2,1-2H3/b9-5+,10-8+/t12-,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. |
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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. Neobritannilactone B has cytotoxic activity. |
Neobritannilactone B Dilution Calculator
Neobritannilactone B Molarity Calculator
| 1 mg | 5 mg | 10 mg | 20 mg | 25 mg | |
| 1 mM | 4.0274 mL | 20.1369 mL | 40.2739 mL | 80.5477 mL | 100.6847 mL |
| 5 mM | 0.8055 mL | 4.0274 mL | 8.0548 mL | 16.1095 mL | 20.1369 mL |
| 10 mM | 0.4027 mL | 2.0137 mL | 4.0274 mL | 8.0548 mL | 10.0685 mL |
| 50 mM | 0.0805 mL | 0.4027 mL | 0.8055 mL | 1.611 mL | 2.0137 mL |
| 100 mM | 0.0403 mL | 0.2014 mL | 0.4027 mL | 0.8055 mL | 1.0068 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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Hypo-pigmenting effect of sesquiterpenes from Inula britannica in B16 melanoma cells.[Pubmed:24346861]
Arch Pharm Res. 2014 May;37(5):567-74.
During the course of screens to identify anti-melanogenic agents from natural resources, we found that the methanol extract of the dried flower of Inula britannica L. inhibited melanin synthesis in cultured melanoma cells stimulated with 3-isobutyl-1-methylxanthine (IBMX). A bioassay-guided isolation of the chloroform fraction of the I. britannica using an in vitro melanogenesis inhibition assay led to the isolation of sesquiterpenes, 1-O-acetylbritannilactone (1), britannilactone (2) and Neobritannilactone B (3). Compounds 1 and 2 significantly reduced melanin production in a dose-dependent manner with IC50 values of 13.3 and 15.5 muM, respectively, whereas compound 3 was found to be cytotoxic. Compound 1 also inhibited the tyrosinase activity only in cell based-systems. Western blot analysis indicated that compound 1 inhibited melanogenesis by activating extracellular signal-regulated kinase (ERK) and Akt signaling and also inhibiting cAMP related binding protein, which regulates its downstream pathway, including tyrosinase, tyrosinase related protein-1 and TRP-2. These results demonstrated that compound 1, a major sesquiterpene from the flowers of I. britannica, exhibited anti-melanogenic activity by suppression of tyrosinase expression via ERK and Akt signaling. Taken together, our results suggest that these compounds may act as potent natural skin-lightening agents.
