(-)-Epicatechin-3-(3''-O-methyl) gallateCAS# 83104-86-3 |
Quality Control & MSDS
Number of papers citing our products
Chemical structure
3D structure
| Cas No. | 83104-86-3 | SDF | Download SDF |
| PubChem ID | 467296 | Appearance | Powder |
| Formula | C23H20O10 | M.Wt | 456.4 |
| Type of Compound | Flavonoids | Storage | Desiccate at -20°C |
| Solubility | Soluble in Chloroform,Dichloromethane,Ethyl Acetate,DMSO,Acetone,etc. | ||
| Chemical Name | [(2R,3R)-2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-3,4-dihydro-2H-chromen-3-yl] 3,4-dihydroxy-5-methoxybenzoate | ||
| SMILES | COC1=CC(=CC(=C1O)O)C(=O)OC2CC3=C(C=C(C=C3OC2C4=CC(=C(C=C4)O)O)O)O | ||
| Standard InChIKey | XGTBMCGGGJLOPS-IFMALSPDSA-N | ||
| Standard InChI | InChI=1S/C23H20O10/c1-31-19-6-11(5-17(28)21(19)29)23(30)33-20-9-13-15(26)7-12(24)8-18(13)32-22(20)10-2-3-14(25)16(27)4-10/h2-8,20,22,24-29H,9H2,1H3/t20-,22-/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 | (-)-Epicatechin-3-(3''-O-methyl) gallate is a natural product from Acacia catechu (L.F.) Willd. |
| In vitro | HPLC Analysis of Catechins in Various Kinds of Green Teas Produced in Japan and Abroad[Reference: WebLink]Nippon Shokuhin Kogyo Gakkaishi》 , 1999 , 46 (3) :138-147.
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(-)-Epicatechin-3-(3''-O-methyl) gallate Dilution Calculator
(-)-Epicatechin-3-(3''-O-methyl) gallate Molarity Calculator
| 1 mg | 5 mg | 10 mg | 20 mg | 25 mg | |
| 1 mM | 2.1911 mL | 10.9553 mL | 21.9106 mL | 43.8212 mL | 54.7765 mL |
| 5 mM | 0.4382 mL | 2.1911 mL | 4.3821 mL | 8.7642 mL | 10.9553 mL |
| 10 mM | 0.2191 mL | 1.0955 mL | 2.1911 mL | 4.3821 mL | 5.4777 mL |
| 50 mM | 0.0438 mL | 0.2191 mL | 0.4382 mL | 0.8764 mL | 1.0955 mL |
| 100 mM | 0.0219 mL | 0.1096 mL | 0.2191 mL | 0.4382 mL | 0.5478 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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HPLC Analysis of Catechins in Various Kinds of Green Teas Produced in Japan and Abroad[
Nippon Shokuhin Kagaku Kogaku Kaishi Vol. 46, No. 3, 138•`147 (1999)
In Japanese green teas such as Matcha (powdered green tea or ceremony tea), high quality Sencha (Sencha : a ordinary Japanese green tea), medium Sencha, Bancha (coarse type green tea) and Hojicha (roasted green tea), the sum of four major catechins, i.e. (-)-epigallocatechin-3-gallate, (-)-epicatechin-3-gallate, (-)-epigallocatechin and (-)-epicatechin were dominant in the total catechin contents. In addition, those teas contained the heat-converted catechins, i.e. (-)-gallocatechin-3-gallate, (-)-catechin-3-gallate, (-)-gallocatechin and (-)-catechin in a small amount. A somewhat large amounts of the heat-converted catechins were observed to appear in Hojicha. Chinese green teas such as Lung Ching tea, Yunnan tea and gun powder, Vietnamese green tea and Indian green teas such as Darjeeling green tea and Darjeeling silver tip contained much more total catechin contents and in those (-)-epigallocatechin-3-gallate showed a especially higher content in comparison with the Japanese ones. (-)-Epigallocatechin-3-(3′-O-methyl) gallate, (-)-Epicatechin-3-(3''-O-methyl) gallate, (-)-epigallocatechin-3,5-digallate and (-)-epicatechin-3,5-digallate were found in Chinese, Vietnamese and Indian green teas. The two catechin-(O-methyl) gallates and the two catechin-digallates were presumably characteristic constituents of China variety (Camellia sinensis var. sinensis) and Assam variety (Camellia sinensis var. assamica), respectively.
