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Pratensein 7-O-glucopyranoside

CAS# 36191-03-4

Pratensein 7-O-glucopyranoside

Catalog No. BCN8613----Order now to get a substantial discount!

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Pratensein 7-O-glucopyranoside: 5mg $213 In Stock
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Quality Control of Pratensein 7-O-glucopyranoside

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Chemical structure

Pratensein 7-O-glucopyranoside

3D structure

Chemical Properties of Pratensein 7-O-glucopyranoside

Cas No. 36191-03-4 SDF Download SDF
PubChem ID 16202157 Appearance Powder
Formula C22H22O11 M.Wt 462.41
Type of Compound Flavonoids Storage Desiccate at -20°C
Solubility Soluble in Chloroform,Dichloromethane,Ethyl Acetate,DMSO,Acetone,etc.
Chemical Name 5-hydroxy-3-(3-hydroxy-4-methoxyphenyl)-7-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxychromen-4-one
SMILES COC1=C(C=C(C=C1)C2=COC3=CC(=CC(=C3C2=O)O)OC4C(C(C(C(O4)CO)O)O)O)O
Standard InChIKey FGAAKLDKKBMYCB-RECXWPGBSA-N
Standard InChI InChI=1S/C22H22O11/c1-30-14-3-2-9(4-12(14)24)11-8-31-15-6-10(5-13(25)17(15)18(11)26)32-22-21(29)20(28)19(27)16(7-23)33-22/h2-6,8,16,19-25,27-29H,7H2,1H3/t16-,19-,20+,21-,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.
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.

Source of Pratensein 7-O-glucopyranoside

The herbs of Trifolium pratense L.

Protocol of Pratensein 7-O-glucopyranoside

Structure Identification
Magnetic Resonance in Chemistry, 2006, 44(7):708-712.

Solvent effect in H-1 NMR spectra of 3 '-hydroxy-4 '-methoxy isoflavonoids from Astragalus membranaceus var. mongholicus[Reference: WebLink]


METHODS AND RESULTS:
Four 3'-hydroxy-4'-methoxy-isoflavonoids: calycosin-7-O-beta-D-glucopyranoside (1), calycosin (2), pratensein-7-O-beta-D-glucopyranoside (Pratensein 7-O-glucopyranoside ,3), and pratensein (4) were isolated from Astragalus membranaceus var. mongholicus, among which compound 4 was obtained from this plant for the first time. The solvent effect obscuring (1)H signal patterns of B ring of compounds 1-4 was reported to avoid mis-assignments.
CONCLUSIONS:
Previously reported NMR data of compounds 1 and 2 were corrected based on 1D and 2D NMR experiments.

Pratensein 7-O-glucopyranoside Dilution Calculator

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Pratensein 7-O-glucopyranoside Molarity Calculator

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Preparing Stock Solutions of Pratensein 7-O-glucopyranoside

1 mg 5 mg 10 mg 20 mg 25 mg
1 mM 2.1626 mL 10.8129 mL 21.6258 mL 43.2517 mL 54.0646 mL
5 mM 0.4325 mL 2.1626 mL 4.3252 mL 8.6503 mL 10.8129 mL
10 mM 0.2163 mL 1.0813 mL 2.1626 mL 4.3252 mL 5.4065 mL
50 mM 0.0433 mL 0.2163 mL 0.4325 mL 0.865 mL 1.0813 mL
100 mM 0.0216 mL 0.1081 mL 0.2163 mL 0.4325 mL 0.5406 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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References on Pratensein 7-O-glucopyranoside

Solvent effect in H-1 NMR spectra of 3 '-hydroxy-4 '-methoxy isoflavonoids from Astragalus membranaceus var. mongholicus

Magnetic Resonance in Chemistry, 2006, 44(7):708-712.

Four 3'-hydroxy-4'-methoxy-isoflavonoids: calycosin-7-O-beta-D-glucopyranoside (1), calycosin (2), pratensein-7-O-beta-D-glucopyranoside (Pratensein 7-O-glucopyranoside ,3), and pratensein (4) were isolated from Astragalus membranaceus var. mongholicus, among which compound 4 was obtained from this plant for the first time. The solvent effect obscuring (1)H signal patterns of B ring of compounds 1-4 was reported to avoid mis-assignments. Previously reported NMR data of compounds 1 and 2 were corrected based on 1D and 2D NMR experiments.

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