8'-Epicleomiscosin ACAS# N/A |
- Cleomiscosin A
Catalog No.:BCN4320
CAS No.:76948-72-6
Quality Control & MSDS
Number of papers citing our products
Chemical structure
3D structure
Cas No. | N/A | SDF | Download SDF |
PubChem ID | 11200016 | Appearance | Powder |
Formula | C20H18O8 | M.Wt | 386.36 |
Type of Compound | Coumarins | Storage | Desiccate at -20°C |
Synonyms | 8'-epi-cleomiscosin A | ||
Solubility | Soluble to 100 mM in DMSO and to 100 mM in ethanol | ||
Chemical Name | (2S,3R)-3-(4-hydroxy-3-methoxyphenyl)-2-(hydroxymethyl)-5-methoxy-2,3-dihydropyrano[3,2-h][1,4]benzodioxin-9-one | ||
SMILES | COC1=C(C=CC(=C1)C2C(OC3=C4C(=CC(=C3O2)OC)C=CC(=O)O4)CO)O | ||
Standard InChIKey | OCBGWPJNUZMLCA-DOTOQJQBSA-N | ||
Standard InChI | InChI=1S/C20H18O8/c1-24-13-7-10(3-5-12(13)22)17-15(9-21)26-20-18-11(4-6-16(23)27-18)8-14(25-2)19(20)28-17/h3-8,15,17,21-22H,9H2,1-2H3/t15-,17+/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 | 8'-Epicleomiscosin A shows strong inhibition (IC50=1.33 microM) against the enzyme tyrosinase, as compared to the standard tyrosinase inhibitors kojic acid (IC50=16.67 microM) and L-mimosine (IC50=3.68 microM), indicating its potential used for the treatment of hyperpigmentation associated with the high production of melanocytes. |
8'-Epicleomiscosin A Dilution Calculator
8'-Epicleomiscosin A Molarity Calculator
1 mg | 5 mg | 10 mg | 20 mg | 25 mg | |
1 mM | 2.5883 mL | 12.9413 mL | 25.8826 mL | 51.7652 mL | 64.7065 mL |
5 mM | 0.5177 mL | 2.5883 mL | 5.1765 mL | 10.353 mL | 12.9413 mL |
10 mM | 0.2588 mL | 1.2941 mL | 2.5883 mL | 5.1765 mL | 6.4706 mL |
50 mM | 0.0518 mL | 0.2588 mL | 0.5177 mL | 1.0353 mL | 1.2941 mL |
100 mM | 0.0259 mL | 0.1294 mL | 0.2588 mL | 0.5177 mL | 0.6471 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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Tyrosinase inhibitors from Rhododendron collettianum and their structure-activity relationship (SAR) studies.
Chemical & Pharmaceutical Bulletin [2004, 52(12):1458-1461]
A new coumarinolignoid 8'-Epicleomiscosin A (1) together with the new glycoside 8-O-beta-D-glucopyranosyl-6-hydroxy-2-methyl-4H-1-benzopyrane-4-one (2) have been isolated from the aerial parts of Rhododendron collettianum and their structures determined on the basis of spectroscopic evidences. Tyrosinase inhibition study of these compounds and their structure-activity relationship (SAR) were also investigated. The compounds exhibited potent to mild inhibition activity against the enzyme. Especially, 8'-Epicleomiscosin A showed strong inhibition (IC50=1.33 microM) against the enzyme tyrosinase, as compared to the standard tyrosinase inhibitors kojic acid (IC50=16.67 microM) and L-mimosine (IC50=3.68 microM), indicating its potential used for the treatment of hyperpigmentation associated with the high production of melanocytes.