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3,4-Dihydroxy-2-methoxyxanthone
3,4-Dihydroxy-2-methoxyxanthone
ChemFaces products have been cited in many studies from excellent and top scientific journals
Product Name 3,4-Dihydroxy-2-methoxyxanthone
Price:
CAS No.: 6702-55-2
Catalog No.: CFN89353
Molecular Formula: C14H10O5
Molecular Weight: 258.22 g/mol
Purity: >=98%
Type of Compound: Xanthones
Physical Desc.: Powder
Source: The branches of Kielmeyera variabilis.
Solvent: Chloroform, Dichloromethane, Ethyl Acetate, DMSO, Acetone, etc.
Download: COA    MSDS
Similar structural: Comparison (Web)  (SDF)
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Size /Price /Stock 10 mM * 1 mL in DMSO / Inquiry
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Size /Price /Stock 10 mM * 100 uL in DMSO / Inquiry / In-stock
10 mM * 1 mL in DMSO / Inquiry / In-stock
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Biological Activity
Description: 3,4-Dihydroxy-2-methoxyxanthone shows antibacterial, and hepatoprotective activities, it can prevent tert-butylhydroperoxide-induced lipid peroxidation and cell death in freshly isolated rat hepatocytes and is effective in preventing perturbation of cell glutathione homeostasis in some extent.
Targets: Antifection
In vitro:
J Nat Prod. 2016 Mar 25;79(3):470-6.
Antistaphylococcal Prenylated Acylphoroglucinol and Xanthones from Kielmeyera variabilis.[Pubmed: 26900954]

METHODS AND RESULTS:
Bioactivity-guided fractionation of the EtOH extract of the branches of Kielmeyera variabilis led to the isolation of a new acylphoroglucinol (1), which was active against all the MRSA strains tested herein, with pronounced activity against strain EMRSA-16. Compound 1 displayed an MIC of 0.5 mg/L as compared with an MIC of 128 mg/L for the control antibiotic norfloxacin. The structure of the new compound was elucidated by 1D and 2D NMR spectroscopic analysis and mass spectrometry, and experimental and calculated ECD were used to determine the absolute configurations. The compounds β-sitosterol (2), stigmasterol (3), ergost-5-en-3-ol (4), and osajaxanthone (5) also occurred in the n-hexane fraction.
CONCLUSIONS:
The EtOAc fraction contained nine known xanthones: 3,6-dihydroxy-1,4,8-trimethoxyxanthone (6), 3,5-dihydroxy-4-methoxyxanthone (7), 3,4-dihydroxy-6,8-dimethoxyxanthone (8), 3,4-Dihydroxy-2-methoxyxanthone (9), 5-hydroxy-1,3-dimethoxyxanthone (10), 4-hydroxy-2,3-dimethoxyxanthone (11), kielcorin (12), 3-hydroxy-2-methoxyxanthone (13), and 2-hydroxy-1-methoxyxanthone (14), which showed moderate to low activity against the tested MRSA strains.
Pharm Res. 1995 Nov;12(11):1756-60.
Hepatoprotective activity of xanthones and xanthonolignoids against tert-butylhydroperoxide-induced toxicity in isolated rat hepatocytes--comparison with silybin.[Pubmed: 8592682]
Synthesize and evaluate the protective activity against tertbutylhydroperoxide-induced toxicity in freshly isolated rat hepatocytes of trans-kielcorin, trans-isokielcorin B, as well as their respective building blocks 3,4-Dihydroxy-2-methoxyxanthone and 2,3-dihydroxy-4-methoxyxanthone.
METHODS AND RESULTS:
Wistar rats, weighing 200-250g were used. Hepatocyte isolation was performed by collagenase perfusion. Incubations were performed at 37 degrees C, using 1 million cells per milliliter in modified Krebs--Henseleit buffer. The protective activity was evaluated by measuring reduced and oxidized glutathione, lipid peroxidation and cell viability after inducing toxicity with tert-butylhydroperoxide (1.0 mM, 30 min), with or without the studied compounds in the concentrations of 0.025, 0.050, 0.100 and 0.200 mM. Silybin was tested in the same experimental conditions to serve as a positive control. Using these concentrations, the tested compounds prevented tert-butylhydroperoxide-induced lipid peroxidation and cell death in freshly isolated rat hepatocytes. All compounds were also effective in preventing perturbation of cell glutathione homeostasis in some extent. 3,4-Dihydroxy-2-methoxyxanthone and 2,3-dihydroxy-4-methoxyxanthone were more effective than trans-kielcorin and trans-isokielcorin B respectively. Silybin was less effective in protecting cells against lipid peroxidation and loss of cell viability than the four xanthonic derivatives.
CONCLUSIONS:
The tested compounds protected the freshly isolated rat hepatocytes against tert-butylhydroperoxide-induced toxicity.
3,4-Dihydroxy-2-methoxyxanthone Description
Source: The branches of Kielmeyera variabilis.
Solvent: Chloroform, Dichloromethane, Ethyl Acetate, DMSO, Acetone, etc.
Storage: Providing storage is as stated on the product vial and the vial is kept tightly sealed, the product can be stored for up to 24 months(2-8C).

Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20C. Generally, these will be useable for up to two weeks. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.

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Recently, ChemFaces products have been cited in many studies from excellent and top scientific journals

Cell. 2018 Jan 11;172(1-2):249-261.e12.
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Calculate Dilution Ratios(Only for Reference)
1 mg 5 mg 10 mg 20 mg 25 mg
1 mM 3.8727 mL 19.3633 mL 38.7267 mL 77.4533 mL 96.8167 mL
5 mM 0.7745 mL 3.8727 mL 7.7453 mL 15.4907 mL 19.3633 mL
10 mM 0.3873 mL 1.9363 mL 3.8727 mL 7.7453 mL 9.6817 mL
50 mM 0.0775 mL 0.3873 mL 0.7745 mL 1.5491 mL 1.9363 mL
100 mM 0.0387 mL 0.1936 mL 0.3873 mL 0.7745 mL 0.9682 mL
* Note: If you are in the process of experiment, it's need to make the dilution ratios of the samples. The dilution data of the sheet for your reference. Normally, it's can get a better solubility within lower of Concentrations.
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