| Size | Price | Stock | Qty |
|---|---|---|---|
| 1mg |
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| Other Sizes |
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| Targets |
Natural flavone; anti-inflammatory, anti-tumor, anti-oxidant, neuroprotective, anti-fungal activities
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|---|---|
| ln Vitro |
Cyclooxygenase-2 (COX-2) and inducible nitric oxide synthase (iNOS) are critical pro-inflammatory proteins. The level of protein and mRNA expression of these enzymes induced by lipopolysaccharide (LPS) was dramatically suppressed by treatment with SWE, scutellarein tetramethyl ether/scu, or stigmasterol compounds in a dose-dependent manner. They also reduced PGE2 and NO release. We further analyzed the NF-κB pathway and found that the scu compound suppressed IκB kinase complex alpha/beta (IKKα/β) and Inhibitory-kappa-B-alpha (IκBα), thereby suppressing COX-2 and iNOS expression.
Conclusion: This is the first report of the anti-inflammatory molecular mechanism in SWE and/or its bioactive component scu, indicating alteration NF-κB pathway and further providing potential uses in the treatment of inflammatory-related diseases.[1]
The purified compound, 4', 5, 6, 7-tetramethoxyflavone, is an active ingredient isolated from Eupatorium odoratum, a Thai indigenous plant that has long been used to stop bleeding. This compound was studied in vitro for the effect on blood clotting factor activities. It was found that the compound enhanced blood coagulation, the observed APTT being shorter than that observed in the control. The result suggested that the compound accelerated clotting time through the intrinsic pathway of the coagulation which may involve the reaction of factor XII, factor XI, factor IX or factor VIII.[3] |
| Cell Assay |
Siam weed (Chromolaena odorata (L.) King and Robinson) is a medicinal herb used for wound healing and inflammation-related diseases.
Aim of the study: In this study, we evaluated the molecular mechanism by which Siam weed extract (SWE) and its bioactive components, scutellarein tetramethyl ether (scu), stigmasterol, and isosakuranetin affect anti-inflammatory activity.
Materials and methods: The expression of several inflammatory proteins in RAW 264.7 (murine) macrophages was assessed by Western blot and reverse transcription-polymerase chain reaction (RT-PCR). Biochemical assays including prostaglandin E2 (PGE2) and nitric-oxide (NO) quantification were performed. Luciferase promoter activity and immunocytochemistry of Nuclear factor-κB (NF-κB) were investigated[1].
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| References | |
| Additional Infomation |
4',5,6,7-tetramethoxyflavone is a tetramethoxyflavone that is the tetra-O-methyl derivative of scutellarein. It has a role as an antimutagen and a plant metabolite. It is functionally related to a scutellarein.
4',5,6,7-Tetramethoxyflavone has been reported in Citrus reticulata, Marrubium peregrinum, and other organisms with data available. See also: Tangerine peel (part of); Citrus aurantium fruit rind (part of). |
| Molecular Formula |
C19H18O6
|
|---|---|
| Molecular Weight |
342.34262
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| Exact Mass |
342.11
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| Elemental Analysis |
C, 66.66; H, 5.30; O, 28.04
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| CAS # |
1168-42-9
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| PubChem CID |
96118
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| Appearance |
Off-white to light yellow solid powder
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| Density |
1.243g/cm3
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| Boiling Point |
525.7ºC at 760mmHg
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| Melting Point |
142-143ºC
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| Flash Point |
232.4ºC
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| Vapour Pressure |
3.84E-11mmHg at 25°C
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| Index of Refraction |
1.574
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| LogP |
3.494
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| Hydrogen Bond Donor Count |
0
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| Hydrogen Bond Acceptor Count |
6
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| Rotatable Bond Count |
5
|
| Heavy Atom Count |
25
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| Complexity |
496
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| Defined Atom Stereocenter Count |
0
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| InChi Key |
URSUMOWUGDXZHU-UHFFFAOYSA-N
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| InChi Code |
InChI=1S/C19H18O6/c1-21-12-7-5-11(6-8-12)14-9-13(20)17-15(25-14)10-16(22-2)18(23-3)19(17)24-4/h5-10H,1-4H3
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| Chemical Name |
5,6,7-trimethoxy-2-(4-methoxyphenyl)chromen-4-one
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| Synonyms |
Scutellarein tetramethyl ether; 1168-42-9; 4',5,6,7-Tetramethoxyflavone; Tetramethyl-O-scutellarin; Tetra-O-methylscutellarein; Tetramethylscutellarein; Flavone, 4',5,6,7-tetramethoxy-; 5,6,7,4'-Tetramethoxyflavone;
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| HS Tariff Code |
2934.99.9001
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| Storage |
Powder -20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month Note: This product requires protection from light (avoid light exposure) during transportation and storage. |
| Shipping Condition |
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
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| Solubility (In Vitro) |
DMSO : ~83.33 mg/mL (~243.41 mM)
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|---|---|
| Solubility (In Vivo) |
Solubility in Formulation 1: ≥ 2.08 mg/mL (6.08 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 20.8 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL. Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution. Solubility in Formulation 2: ≥ 2.08 mg/mL (6.08 mM) (saturation unknown) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), clear solution. For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 20.8 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly. Preparation of 20% SBE-β-CD in Saline (4°C，1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution. View More
Solubility in Formulation 3: ≥ 2.08 mg/mL (6.08 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution. |
| Preparing Stock Solutions | 1 mg | 5 mg | 10 mg | |
| 1 mM | 2.9211 mL | 14.6054 mL | 29.2107 mL | |
| 5 mM | 0.5842 mL | 2.9211 mL | 5.8421 mL | |
| 10 mM | 0.2921 mL | 1.4605 mL | 2.9211 mL |
*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.
Calculation results
Working concentration： mg/mL；
Method for preparing DMSO stock solution： mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.
Method for preparing in vivo formulation:：Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O，mix and clarify.
(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
(2) Be sure to add the solvent(s) in order.
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