Kaempferol-3-beta-O-glucuronide 22688-78-4 standard supplier in China
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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.
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.
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.
Cas No. | 22688-78-4 | ||
PubChem ID | 22846027 | Appearance | Yellow powder |
Formula | C21H18O12 | M.Wt | 462.36 |
Type of Compound | Flavonoids | Storage | Desiccate at -20°C |
Solubility | Soluble in Chloroform,Dichloromethane,Ethyl Acetate,DMSO,Acetone,etc. | ||
Chemical Name | (2S,3S,4S,5R)-6-[5,7-dihydroxy-2-(4-hydroxyphenyl)-4-oxochromen-3-yl]oxy-3,4,5-trihydroxyoxane-2-carboxylic acid | ||
SMILES | C1=CC(=CC=C1C2=C(C(=O)C3=C(C=C(C=C3O2)O)O)OC4C(C(C(C(O4)C(=O)O)O)O)O)O | ||
Standard InChIKey | FNTJVYCFNVUBOL-MBIBTLSJSA-N | ||
Standard InChI | InChI=1S/C21H18O12/c22-8-3-1-7(2-4-8)17-18(13(25)12-10(24)5-9(23)6-11(12)31-17)32-21-16(28)14(26)15(27)19(33-21)20(29)30/h1-6,14-16,19,21-24,26-28H,(H,29,30)/t14-,15-,16+,19-,21?/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. |
||
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. |
The herbs of Euphorbia lathyris
Description | 1. Kaempferol-3-beta-O-glucuronide has antioxidant activity. 2. Flavonoid glucuronides can be deconjugated by microsomal β-glucuronidase from various human cells. |
1 mg | 5 mg | 10 mg | 20 mg | 25 mg | |
1 mM | 2.1628 mL | 10.8141 mL | 21.6282 mL | 43.2563 mL | 54.0704 mL |
5 mM | 0.4326 mL | 2.1628 mL | 4.3256 mL | 8.6513 mL | 10.8141 mL |
10 mM | 0.2163 mL | 1.0814 mL | 2.1628 mL | 4.3256 mL | 5.407 mL |
50 mM | 0.0433 mL | 0.2163 mL | 0.4326 mL | 0.8651 mL | 1.0814 mL |
100 mM | 0.0216 mL | 0.1081 mL | 0.2163 mL | 0.4326 mL | 0.5407 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. |
Evaluation of cytotoxic compounds from calligonum comosum L. growing in Egypt.[Pubmed:18069236]
Z Naturforsch C. 2007 Sep-Oct;62(9-10):656-60.
Calligonum comosum (Polygonaceae), an Egyptian desert plant, was extracted and fractionated using petroleum ether, methylene chloride, and ethyl acetate. The total methanolic extract and other fractions were tested for their anticancer activity using Ehrlich ascites, brine shrimp and antioxidant assays. Ethyl acetate fraction proved to be the most active in all assays. Eight compounds were isolated, purified, and identified from this fraction as (+)-catechin (1), dehydrodicatechin A (2), kaempferol-3-O-rhamnopyranoside (3), quercitrin (quercetin-3-O-rhamnopyranoside) (4), beta-sitosterol-3-O-glucoside (5), isoquercitrin (quercetin-3-O-glucopyranoside) (6), kaempferol-3-O-glucuronide (7), and mequilianin (quercetin-3-O-glucuronide) (8). All isolated compounds were tested for their cytotoxicity and antioxidant activity. Compound 2 showed the best cytotoxic and antioxidant activity.
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