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5'-Geranyl-5,7,2',4'-tetrahydroxyflavone
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Product Name 5'-Geranyl-5,7,2',4'-tetrahydroxyflavone
Price:
CAS No.: 1221762-70-4
Catalog No.: CFN92321
Molecular Formula: C25H26O6
Molecular Weight: 422.5 g/mol
Purity: >=98%
Type of Compound: Flavonoids
Physical Desc.: Yellow powder
Source: The root barks of Morus alba L.
Solvent: Chloroform, Dichloromethane, Ethyl Acetate, DMSO, Acetone, etc.
Download: COA    MSDS    SDF
Similar structural: Comparison (Web)  (SDF)
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Related Screening Libraries
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Biological Activity
Description: 5'-Geranyl-5,7,2',4'-tetrahydroxyflavone inhibits cholinesterase enzyme in a dose-dependent manner against acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) enzymes.It shows better tyrosinase inhibitory activities than kojic acid.
Targets: Tyrosinase | AChR | BChR
In vitro:
J Agric Food Chem. 2010 May 12;58(9):5368-73.
Tyrosinase Inhibitory Constituents from the Roots of Morus nigra: A Structure−Activity Relationship Study[Pubmed: 20297841 ]
One new compound, 5'-Geranyl-5,7,2',4'-tetrahydroxyflavone, and twenty-eight known phenolic compounds were isolated.
METHODS AND RESULTS:
Their structures were identified by mass spectrometry and NMR spectroscopy. Nine compounds, 5'-Geranyl-5,7,2',4'-tetrahydroxyflavone, steppogenin-7-O-beta-D-glucoside, 2,4,2',4'-tetrahydroxychalcone, moracin N, kuwanon H, mulberrofuran G, morachalcone A, oxyresveratrol-3'-O-beta-D-glucopyranoside and oxyresveratrol-2-O-beta-D-glucopyranoside, showed better tyrosinase inhibitory activities than kojic acid. It was noteworthy that the IC(50) values of 2,4,2',4'-tetrahydroxychalcone and morachalcone A were 757-fold and 328-fold lower than that of kojic acid, respectively, suggesting a great potential for their development as effective natural tyrosinase inhibitors.
5'-Geranyl-5,7,2',4'-tetrahydroxyflavone Description
Source: The root barks of Morus alba L.
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.

Need more advice on solubility, usage and handling? Please email to: service@chemfaces.com

After receiving: The packaging of the product may have turned upside down during transportation, resulting in the natural compounds adhering to the neck or cap of the vial. take the vial out of its packaging and gently shake to let the compounds fall to the bottom of the vial. for liquid products, centrifuge at 200-500 RPM to gather the liquid at the bottom of the vial. try to avoid loss or contamination during handling.
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Calculate Dilution Ratios(Only for Reference)
1 mg 5 mg 10 mg 20 mg 25 mg
1 mM 2.3669 mL 11.8343 mL 23.6686 mL 47.3373 mL 59.1716 mL
5 mM 0.4734 mL 2.3669 mL 4.7337 mL 9.4675 mL 11.8343 mL
10 mM 0.2367 mL 1.1834 mL 2.3669 mL 4.7337 mL 5.9172 mL
50 mM 0.0473 mL 0.2367 mL 0.4734 mL 0.9467 mL 1.1834 mL
100 mM 0.0237 mL 0.1183 mL 0.2367 mL 0.4734 mL 0.5917 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.
Protocol
Kinase Assay:
J Agric Food Chem. 2011 May 11;59(9):4589-96.
Isolation of cholinesterase-inhibiting flavonoids from Morus lhou.[Pubmed: 21434689 ]
Cholinesterases are key enzymes that play important roles in cholinergic transmission.
METHODS AND RESULTS:
Nine flavonoids displaying cholinesterase inhibitory activity were isolated from the root bark of Morus lhou L., a cultivated edible plant. The isolated compounds were identified as a new flavone (1), 5'-Geranyl-5,7,2',4'-tetrahydroxyflavone (2), kuwanon U (3), kuwanon E (4), morusin (5), morusinol (6), cyclomorusin (7), neocyclomorusin (8), and kuwanon C (9). All compounds apart from compound 6 inhibited cholinesterase enzyme in a dose-dependent manner with K(i) values ranging between 3.1 and 37.5 μM and between 1.7 and 19.1 μM against acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) enzymes, respectively. The new compound was charactierized as 5'-geranyl-4'-methoxy-5,7,2'-trihydroxyflavone (1). It showed the most potent inhibitory activity (K(i) = 3.1 μM for AChE, K(i) = 1.74 μM for BChE). Lineweaver-Burk and Dixon plots and their secondary replots indicated that flavones (5-9) with prenyl substitution on C-3 were noncompetitive inhibitors, whereas those unsubstituted (1-4) at C-3 were mixed inhibitors of both AChE and BChE.
CONCLUSIONS:
In conclusion, this is the first study to demonstrate that alkylated flavonoids of M. lhou have potent inhibitory activities against AChE and BChE.
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