EngeletinCAS# 572-31-6 |
- Isoengeletin
Catalog No.:BCN9509
CAS No.:30987-58-7
Quality Control & MSDS
Number of papers citing our products
Chemical structure
3D structure
Cas No. | 572-31-6 | SDF | Download SDF |
PubChem ID | 6453452 | Appearance | White powder |
Formula | C21H22O10 | M.Wt | 434.4 |
Type of Compound | Flavonoids | Storage | Desiccate at -20°C |
Synonyms | Dihydrokaempferol 3-rhamnoside; Engelitin | ||
Solubility | DMSO : ≥ 83.3 mg/mL (191.76 mM) *"≥" means soluble, but saturation unknown. | ||
Chemical Name | (2R,3R)-5,7-dihydroxy-2-(4-hydroxyphenyl)-3-[(2S,3R,4R,5R,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxy-2,3-dihydrochromen-4-one | ||
SMILES | CC1C(C(C(C(O1)OC2C(OC3=CC(=CC(=C3C2=O)O)O)C4=CC=C(C=C4)O)O)O)O | ||
Standard InChIKey | VQUPQWGKORWZII-WDPYGAQVSA-N | ||
Standard InChI | InChI=1S/C21H22O10/c1-8-15(25)17(27)18(28)21(29-8)31-20-16(26)14-12(24)6-11(23)7-13(14)30-19(20)9-2-4-10(22)5-3-9/h2-8,15,17-25,27-28H,1H3/t8-,15-,17+,18+,19+,20-,21-/m0/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. |
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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. |
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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. |
Description | Engeletin, a bioactive flavonoid, has multiple biological activities such as anti-diabetic and anti-inflammatory effects. Engeletin possesses potent inhibition of PGE2 release with IC50 values of 19.6 μg/ml; it inhibits a recombinant human aldose reductase (IC50 value=1.16 microM). |
Targets | TLR | NOS | PGE2 | IL Receptor | COX | TNF-α | NO | NF-kB | p65 | Aldose reductase |
In vitro | Isolation and characterization of two flavonoids, engeletin and astilbin, from the leaves of Engelhardia roxburghiana and their potential anti-inflammatory properties.[Pubmed: 21476602]J Agric Food Chem. 2011 May 11;59(9):4562-9.Engeletin, a flavonoid compound, was isolated from the leaves of Engelhardia roxburghiana for the first time, along with astilbin, another flavonoid.
An in vitro inhibitory effect on RAW 264.7 cells by anti-inflammatory compounds from Smilax corbularia Kunth.[Pubmed: 23393906]Asian Pac J Allergy Immunol. 2012 Dec;30(4):268-74.Smilax corbularia is a Thai medicinal plant locally known as 'Hua-Khao-Yen Neua', which is used for treating inflammatory conditions.
To evaluate the anti-inflammatory effect of S. corbularia extracts and its isolated compounds by determination of inhibitory effects on lipopolysaccharide-stimulated PGE2 release, and TNF-alpha and NO production from RAW 264.7 cells.
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In vivo | Engeletin Alleviates Lipopolysaccharide-Induced Endometritis in Mice by Inhibiting TLR4-mediated NF-κB Activation.[Pubmed: 27411287 ]J Agric Food Chem. 2016 Aug 10;64(31):6171-8.Engeletin (dihydrokaempferol 3-rhamnoside) is a flavanonol glycoside. It can be found in the skin of white grapes and white wine and is widely distributed in southeast Asia, and the leaves are used in a tea. Here, we explored the impact of Engeletin against the inflammatory reaction in a lipopolysaccharide (LPS)-induced endometritis mouse model.
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Structure Identification | J Fluoresc. 2012 Jan;22(1):511-9.Binding of engeletin with bovine serum albumin: insights from spectroscopic investigations.[Pubmed: 21947612]In this paper, several spectroscopic techniques were used to investigate the interaction of Engeletin (ELN) with bovine serum albumin (BSA).
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Engeletin Dilution Calculator
Engeletin Molarity Calculator
1 mg | 5 mg | 10 mg | 20 mg | 25 mg | |
1 mM | 2.302 mL | 11.5101 mL | 23.0203 mL | 46.0405 mL | 57.5506 mL |
5 mM | 0.4604 mL | 2.302 mL | 4.6041 mL | 9.2081 mL | 11.5101 mL |
10 mM | 0.2302 mL | 1.151 mL | 2.302 mL | 4.6041 mL | 5.7551 mL |
50 mM | 0.046 mL | 0.2302 mL | 0.4604 mL | 0.9208 mL | 1.151 mL |
100 mM | 0.023 mL | 0.1151 mL | 0.2302 mL | 0.4604 mL | 0.5755 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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Binding of engeletin with bovine serum albumin: insights from spectroscopic investigations.[Pubmed:21947612]
J Fluoresc. 2012 Jan;22(1):511-9.
In this paper, several spectroscopic techniques were used to investigate the interaction of Engeletin (ELN) with bovine serum albumin (BSA). The analysis of UV-Vis absorption and fluorescence spectra revealed that ELN and BSA formed a static complex ELN-BSA, and ELN quenched the fluorescence of BSA effectively. According to the thermodynamic parameters DeltaS(0) = 47.27 J.mol(-1).K(-1) and DeltaEta(0) = -10.34 kJ.mol(-1), the hydrophobic and hydrogen bond interactions were suggested to be the major interaction forces between ELN and BSA. Raman spectroscopy indicated that the binding of ELN slightly changed the conformations and microenviroment of BSA and decreased the alpha-helix content of BSA.
Isolation and characterization of two flavonoids, engeletin and astilbin, from the leaves of Engelhardia roxburghiana and their potential anti-inflammatory properties.[Pubmed:21476602]
J Agric Food Chem. 2011 May 11;59(9):4562-9.
Engeletin, a flavonoid compound, was isolated from the leaves of Engelhardia roxburghiana for the first time, along with astilbin, another flavonoid. The chemical structures of Engeletin and astilbin were confirmed by (1)H and (13)C nuclear magnetic resonance (NMR) and mass spectrometry (MS) spectra, and their anti-inflammatory activities were studied in lipopolysaccharide (LPS)-stimulated mouse J774A.1 macrophage cells. LPS induced the inflammatory state in macrophage cells and increased mRNA expressions of pro-inflammatory cytokines. Engeletin and astilbin exhibited remarkable inhibitory effects on interleukin (IL)-1beta and IL-6 mRNA expression. Significant inhibition of LPS-mediated mRNA expressions were also seen in LPS binding toll-like receptor (TLR)-4, pro-inflammatory cytokine tumor necrosis factor (TNF)-alpha, IL-10, chemoattractant monocyte chemotactic protein (MCP)-1, and cyclooxygenase (COX)-2 genes. The reduced expression of these cytokines may alleviate immune response and reduce inflammatory activation, indicating that Engeletin and astilbin may serve as potential anti-inflammatory agents.
Engeletin Alleviates Lipopolysaccharide-Induced Endometritis in Mice by Inhibiting TLR4-mediated NF-kappaB Activation.[Pubmed:27411287]
J Agric Food Chem. 2016 Aug 10;64(31):6171-8.
Engeletin (dihydrokaempferol 3-rhamnoside) is a flavanonol glycoside. It can be found in the skin of white grapes and white wine and is widely distributed in southeast Asia, and the leaves are used in a tea. Here, we explored the impact of Engeletin against the inflammatory reaction in a lipopolysaccharide (LPS)-induced endometritis mouse model. Engeletin treatment significantly attenuated uterus damage and decreased myeloperoxidase activity. ELISA and qPCR assays showed that Engeletin dose-dependently suppressed the expression of TNF-alpha, IL-1beta, and IL-6. Molecular studies also demonstrated that the levels of iNOS, COX-2, and TLR4, along with their downstream molecules MyD88, IRAK1, TRAF6, and TAK1, were also suppressed by Engeletin. In addition, Engeletin treatment inhibited NF-kappaB signaling-pathway activation. Moreover, immunofluorescence analysis demonstrated that Engeletin suppressed NF-kappaB-p65 nuclear translocation. These data indicated the protective action of Engeletin against LPS-stimulated endometritis in mice via negative regulation of pro-inflammatory mediators via the TLR4-regulated NF-kappaB pathway.