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Onjixanthone II

CAS# 136083-93-7

Onjixanthone II

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Chemical structure

Onjixanthone II

3D structure

Chemical Properties of Onjixanthone II

Cas No. 136083-93-7 SDF Download SDF
PubChem ID 5320291 Appearance Powder
Formula C15H12O7 M.Wt 304.25
Type of Compound Xanthones Storage Desiccate at -20°C
Solubility Soluble in Chloroform,Dichloromethane,Ethyl Acetate,DMSO,Acetone,etc.
Chemical Name 1,3,6-trihydroxy-2,7-dimethoxyxanthen-9-one
SMILES COC1=C(C=C2C(=C1)C(=O)C3=C(C(=C(C=C3O2)O)OC)O)O
Standard InChIKey MEDZADGBRDMLGM-UHFFFAOYSA-N
Standard InChI InChI=1S/C15H12O7/c1-20-10-3-6-9(4-7(10)16)22-11-5-8(17)15(21-2)14(19)12(11)13(6)18/h3-5,16-17,19H,1-2H3
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 Onjixanthone II

The roots of Polygala tenuifolia.

Biological Activity of Onjixanthone II

DescriptionOnjixanthone II is a natural product from Polygala tenuifolia.

Protocol of Onjixanthone II

Structure Identification
Chin J Nat Med. 2014 Mar;12(3):225-8.

Chemical investigation of the roots of Polygala sibirica L.[Pubmed: 24702811]

To investigate the chemical constituents of the roots of Polygala sibirica L. (Polygalaceae)
METHODS AND RESULTS:
The isolation was performed by solvent extraction and various chromatographic techniques, including silica gel, Sephadex LH-20, ODS, semi-preparative HPLC, and preparative TLC. The chemical structures were elucidated based on extensive spectroscopic analysis, including HR-ESI-MS and 1D- and 2D-NMR spectroscopic data. A total of sixteen compounds, including five xanthones (5, 7-10), five saccharide esters (1, 3, 4, 12, 13), two flavonoids (14, 16), two triterpenoids (11, 15), one phenylpropanoid (6), and one benzophenone glycoside (2) were isolated. Their structures were determined as sibiricose A7 (1), sibiriphenone A (2), polygalatenoside A (3), polygalatenoside C (4), lancerin (5), 3, 4, 5-trimethoxycinnamic acid (6), 6-hydroxy-1, 2, 3, 7-tetramethoxyxanthone (7), 1, 3, 7-trihydroxy-2-methoxyxanthone (8), Onjixanthone II (9), 1, 2, 3, 6, 7-pentamethoxyxanthone (10), presenegenin (11), 3'-O-3, 4, 5-trimethoxycinnamoyl-6-O-4-methoxy benzoyl sucrose (12), tenuifoliside C (13), 5, 3'-dihydroxy-7, 4'-dimethoxyflavonol-3-O-β-D-glucopyranoside (14), tenuifolin (15), and rhamnetin 3-O-β-D-glucopyranoside (16).
CONCLUSIONS:
Compounds 1 and 2 are two new compounds from P. sibirica.

Phytochemistry, 1991, 30(6):2061–2065.

Two xanthones from Polygala tenuifolia.[Reference: WebLink]


METHODS AND RESULTS:
Two new xanthones, onjixanthone I and Onjixanthone II, and four known xanthones, 1,6-dihydroxy-3,7-dimethoxyxanthone, 1,7-dihydroxy-3-methoxyxanthone, 1,6-dihydroxy-3,5,7-trimethoxyxanthone and 1-hydroxy-3,6,7-trimethoxyxanthone were isolated from roots of Polygala tenuifolia.
CONCLUSIONS:
The structures of these xanthones were established on the basis of chemical studies and spectral evidence including 2D NMR and NOE studies.

Onjixanthone II Dilution Calculator

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Onjixanthone II Molarity Calculator

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Preparing Stock Solutions of Onjixanthone II

1 mg 5 mg 10 mg 20 mg 25 mg
1 mM 3.2868 mL 16.4339 mL 32.8677 mL 65.7354 mL 82.1693 mL
5 mM 0.6574 mL 3.2868 mL 6.5735 mL 13.1471 mL 16.4339 mL
10 mM 0.3287 mL 1.6434 mL 3.2868 mL 6.5735 mL 8.2169 mL
50 mM 0.0657 mL 0.3287 mL 0.6574 mL 1.3147 mL 1.6434 mL
100 mM 0.0329 mL 0.1643 mL 0.3287 mL 0.6574 mL 0.8217 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 Onjixanthone II

Chemical investigation of the roots of Polygala sibirica L.[Pubmed:24702811]

Chin J Nat Med. 2014 Mar;12(3):225-8.

AIM: To investigate the chemical constituents of the roots of Polygala sibirica L. (Polygalaceae) METHOD: The isolation was performed by solvent extraction and various chromatographic techniques, including silica gel, Sephadex LH-20, ODS, semi-preparative HPLC, and preparative TLC. The chemical structures were elucidated based on extensive spectroscopic analysis, including HR-ESI-MS and 1D- and 2D-NMR spectroscopic data. RESULTS: A total of sixteen compounds, including five xanthones (5, 7-10), five saccharide esters (1, 3, 4, 12, 13), two flavonoids (14, 16), two triterpenoids (11, 15), one phenylpropanoid (6), and one benzophenone glycoside (2) were isolated. Their structures were determined as sibiricose A7 (1), sibiriphenone A (2), polygalatenoside A (3), polygalatenoside C (4), lancerin (5), 3, 4, 5-trimethoxycinnamic acid (6), 6-hydroxy-1, 2, 3, 7-tetramethoxyxanthone (7), 1, 3, 7-trihydroxy-2-methoxyxanthone (8), Onjixanthone II (9), 1, 2, 3, 6, 7-pentamethoxyxanthone (10), presenegenin (11), 3'-O-3, 4, 5-trimethoxycinnamoyl-6-O-4-methoxy benzoyl sucrose (12), tenuifoliside C (13), 5, 3'-dihydroxy-7, 4'-dimethoxyflavonol-3-O-beta-D-glucopyranoside (14), tenuifolin (15), and rhamnetin 3-O-beta-D-glucopyranoside (16). CONCLUSION: Compounds 1 and 2 are two new compounds from P. sibirica.

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