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Home > Products >  Astragalin

Astragalin CAS NO.480-10-4

  • Min.Order: 10 Milligram
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  • Astragalin
  • 480-10-4
  • standard supplier in China

Quick Details

  • ProName: Astragalin
  • CasNo: 480-10-4
  • Molecular Formula: C21H20O11=448.4
  • Appearance: detailed see specifications
  • Application: analysis,activity test,Botanical Refer...
  • DeliveryTime: 1-3?working?days?after?confirming?the?...
  • PackAge: According to the clients requirement.
  • Port: China main port
  • ProductionCapacity: 1 Metric Ton/Day
  • Purity: ≥98%
  • Storage: Store at 2~8°C
  • Transportation: by air or by ocean shipping
  • LimitNum: 10 Milligram
  • Plant of Origin: Chinese herbal medicine
  • Testing Method: NMR/MS/HPLC
  • Product Ecification: 1mg-1kg
  • Heavy Metal: <10ppm
  • Voluntary Standards: company standard
  • Storage: Store in dry, dark and ventilated plac...
  • PackAge: Brown vial HDPE plastic bottle

Superiority

Hubei CuiRan Biotechnology Co., Ltd is a leading company in the research, development, manufacture and marketing of High Quality Phytochemicals and Extracts(especially Active Ingredients from Traditional Chinese Medicine,Traditional Chinese Medicine), Natural Active Pharmaceutical Ingredients worldwide. From small quantities for R&D or reference standard, to large quantities for customizing or manufacturing, Biopurify emphasizes on consistent and reliable services for his customers. 
With excellent quality products and good service, we have clients from more than dozens countries and regions, and we pride ourselves in providing our customers with a total satisfaction experiences.
We are doing our best to be your reliable partner for high quality Phytochemicals and Reference Standards from china.
 
Our main services:
A. Supply active ingredients and reference standards ofTraditional Chinese Medicine, from mgs to kgs scale.
B. Custom extraction and purification, target Herb Active Ingredients
C. Custom synthesis and semi-synthesis for Natural Active Ingredients
D. CR, CM and PD services from lab scale, pilot scale to commercial scale(GMP is also available)
E.Traditional Chinese Medicine compounds library
 

1.Provide traditional Chinese medicine reference materials and natural active ingredients;
2.More than 2200 compounds are available for selection, continuously building high-quality natural product libraries for drug research and development;
3.Provide various screening libraries and more inhibitor products;
4.Provide separation and structural determination of natural products;
5.Laboratory scale pilot to commercial scale collaborative research and process development services.More than 180 experiences in phytochemistry (still increasing)
Each product has passed very strict testing (NMR/MS/HPLC)
Agents from many countries

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.

Details

Chemical Properties of Astragalin

Cas No. 480-10-4 SDF  
PubChem ID 5282102 Appearance Yellow powder
Formula C21H20O11 M.Wt 448.4
Type of Compound Flavonoids Storage Desiccate at -20°C
Synonyms Astragaline; 3-Glucosylkaempferol; Kaempferol 3-β-D-glucopyranoside
Solubility DMSO : ≥ 100 mg/mL (223.03 mM)
*"≥" means soluble, but saturation unknown.
Chemical Name 5,7-dihydroxy-2-(4-hydroxyphenyl)-3-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxychromen-4-one
SMILES C1=CC(=CC=C1C2=C(C(=O)C3=C(C=C(C=C3O2)O)O)OC4C(C(C(C(O4)CO)O)O)O)O
Standard InChIKey JPUKWEQWGBDDQB-QSOFNFLRSA-N
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 Astragalin

1 Aesculus sp. 2 Allium sp. 3 Alkanna sp. 4 Arctium sp. 5 Asplenium sp. 6 Castanea sp. 7 Cichorium sp. 8 Cornus sp. 9 Cucurbita sp. 10 Cyamopsis sp. 11 Dionaea sp. 12 Equisetum sp. 13 Eriodictyon sp. 14 Eryngium sp. 15 Euphorbia sp. 16 Geranium sp. 17 Ginkgo sp. 18 Glycyrrhiza sp. 19 Gossypium sp. 20 Hamamelis sp. 21 Humulus sp. 22 Illicium sp. 23 Lamium sp. 24 Larix sp. 25 Laurus sp. 26 Liquidambar sp. 27 Liriodendron sp. 28 Menyanthes sp. 29 Oenothera sp. 30 Orchis sp. 31 Paeonia sp. 32 Phyllanthus sp. 33 Phytolacca sp. 34 Platanus sp. 35 Primula sp. 36 Rhamnus sp. 37 Ribes sp. 38 Rosa sp. 39 Sambucus sp. 40 Sanguisorba sp. 41 Senecio sp. 42 Serenoa sp. 43 Solidago sp. 44 Syzygium sp. 45 Tilia sp. 46 Trigonella sp. 47 Urtica sp. 48 Viburnum sp.

Biological Activity of Astragalin

Description Astragalin (kaempferol-3-O-glucoside) is a flavonoid with anti-inflammatory activity, it inhibits the TLR4-mediated NF-κB and mitogen-activated protein kinases signaling pathways. Astragalin ameliorates oxidative stress-associated epithelial eosinophilia and apoptosis through disturbing TLR4-PKCβ2-NADPH oxidase-responsive signaling; it also can be effective in allaying ROS-promoted bronchial fibrosis through inhibiting autophagosome formation in airways.
Targets ROS | TLR | PKC | NADPH-oxidase | NF-kB | p38MAPK | IkB | VEGFR | IL Receptor | NO | PGE | NOS | COX | PPAR | JNK | TNF-α | p65 | IKK
In vitro

Inhibitory effects of astragalin on lipopolysaccharide-induced inflammatory response in mouse mammary epithelial cells.[Pubmed: 24972733]

J Surg Res. 2014 Dec;192(2):573-81.

Tea brewed from the leaves of persimmon or Rosa agrestis have several medical functions including treating allergy, antiatopic dermatitis, and anti-inflammatory effects. The objective of this study was to investigate the molecular mechanisms of Astragalin, a main flavonoid component isolated from these herbs, in modifying lipopolysaccharide (LPS)-induced signaling pathways in primary cultured mouse mammary epithelial cells (mMECs).
METHODS AND RESULTS:
The mMECs were treated with LPS in the absence or presence of different concentrations of Astragalin. The expression of proinflammatory cytokines tumor necrosis factor α, and interleukin 6, as well as nitric oxide production were determined by enzyme-linked immunosorbent assay and Griess reaction, respectively. Cyclooxygenase-2, inducible nitric oxide synthase, toll-like receptor 4 (TLR4), nuclear factor-κB (NF-κB), inhibitor protein of NF-κB (IκBα), P38, extracellular signal-regulated kinase, and c-Jun N-terminal kinase were measured by Western blot. The results showed that Astragalin suppressed the expression of tumor necrosis factor α, interleukin 6, and nitric oxide in a dose-dependent manner in mMECs. Western blot results showed that the expression of inducible nitric oxide synthase and cyclooxygenase-2 was inhibited by Astragalin. Besides, Astragalin efficiently decreased LPS-induced TLR4 expression, NF-κB activation, IκBα degradation, and the phosphorylation of p38, extracellular signal-regulated kinase in BMECs.
CONCLUSIONS:
Our results indicated that Astragalin exerts anti-inflammatory properties possibly via the inactivation of TLR4-mediated NF-κB and mitogen-activated protein kinases signaling pathways in LPS-stimulated mMECs. Thus, Astragalin may be a potential therapeutic agent for bovine mastitis.

Astragalin inhibits autophagy-associated airway epithelial fibrosis.[Pubmed: 25895672]

Respir Res. 2015 Apr 21;16:51.

Fibrotic remodeling of airway and lung parenchymal compartments is attributed to pulmonary dysfunction with an involvement of reactive oxygen species (ROS) in chronic lung diseases such as idiopathic pulmonary fibrosis and asthma.
METHODS AND RESULTS:
The in vitro study elucidated inhibitory effects of Astragalin, kaempferol-3-O-glucoside from leaves of persimmon and green tea seeds, on oxidative stress-induced airway fibrosis. The in vivo study explored the demoting effects of Astragalin on epithelial to mesenchymal transition in BALB/c mice sensitized with ovalbumin (OVA). The exposure of 20 μM H2O2 for 72 h accelerated E-cadherin loss and vimentin induction in airway epithelial BEAS-2B cells, which was reversed by non-toxic Astragalin at 1-20 μM. Astragalin allayed the airway tissue levels of ROS and vimentin enhanced by OVA challenge. Collagen type 1 production increased in H2O2-exposed epithelial cells and collagen fiber deposition was observed in OVA-challenged mouse airways. This study further investigated that the oxidative stress-triggered autophagic regulation was responsible for inducing airway fibrosis. H2O2 highly enhanced the expression induction of the autophagy-related beclin-1 and light chains 3A/B (LC3A/B) within 4 h and Astragalin blocked such induction by H2O2. This compound deterred the ROS-promoted autophagosome formation in BEAS-2B cells. Consistently, in OVA-sensitized mice the expression of beclin-1 and LC3A/B was highly induced, and oral administration of Astragalin suppressed the autophagosome formation with inhibiting the induction of these proteins in OVA-challenged airway subepithelium. Induction of autophagy by spermidine influenced the epithelial induction of E-cadherin and vimentin that was blocked by treating Astragalin.
CONCLUSIONS:
These results demonstrate that Astragalin can be effective in allaying ROS-promoted bronchial fibrosis through inhibiting autophagosome formation in airways.

Astragalin inhibits airway eotaxin-1 induction and epithelial apoptosis through modulating oxidative stress-responsive MAPK signaling.[Pubmed: 25069610]

BMC Pulm Med. 2014 Jul 29;14:122.

Eotaxin proteins are a potential therapeutic target in treating the peribronchial eosinophilia associated with allergic airway diseases. Since inflammation is often associated with an increased generation of reactive oxygen species (ROS), oxidative stress is a mechanistically imperative factor in asthma. Astragalin (kaempferol-3-O-glucoside) is a flavonoid with anti-inflammatory activity and newly found in persimmon leaves and green tea seeds. This study elucidated that Astragalin inhibited endotoxin-induced oxidative stress leading to eosinophilia and epithelial apoptosis in airways.
METHODS AND RESULTS:
Airway epithelial BEAS-2B cells were exposed to lipopolysaccharide (LPS) in the absence and presence of 1-20 μM Astragalin. Western blot and immunocytochemical analyses were conducted to determine induction of target proteins. Cell and nuclear staining was also performed for ROS production and epithelial apoptosis. When airway epithelial cells were exposed to 2 μg/ml LPS, Astragalin nontoxic at ≤ 20 μM suppressed cellular induction of Toll-like receptor 4 (TLR4) and ROS production enhanced by LPS. Both LPS and H2O2 induced epithelial eotaxin-1 expression, which was blocked by Astragalin. LPS activated and induced PLCγ1, PKCβ2, and NADPH oxidase subunits of p22phox and p47phox in epithelial cells and such activation and induction were demoted by Astragalin or TLR4 inhibition antagonizing eotaxin-1 induction. H2O2-upregulated phosphorylation of JNK and p38 MAPK was dampened by adding Astragalin to epithelial cells, while this compound enhanced epithelial activation of Akt and ERK. H2O2 and LPS promoted epithelial apoptosis concomitant with nuclear condensation or caspase-3 activation, which was blunted by Astragalin.
CONCLUSIONS:
Astragalin ameliorated oxidative stress-associated epithelial eosinophilia and apoptosis through disturbing TLR4-PKCβ2-NADPH oxidase-responsive signaling. Therefore, Astragalin may be a potent agent antagonizing endotoxin-induced oxidative stress leading to airway dysfunction and inflammation.

Protocol of Astragalin

Cell Research

Astragalin inhibits IL-1β-induced inflammatory mediators production in human osteoarthritis chondrocyte by inhibiting NF-κB and MAPK activation.[Pubmed: 25637445]

Int Immunopharmacol. 2015 Mar;25(1):83-7.

Astragalin, a bioactive component isolated from Rosa agrestis, has been described to exhibit anti-inflammatory activity. The aim of this study was to investigate the anti-inflammatory effects and the underlying mechanisms of Astragalin on IL-1β-stimulated human osteoarthritis chondrocyte.
METHODS AND RESULTS:
The production of NO and PGE2 was detected by Griess reaction and ELISA. The expression of iNOS and COX-2 was detected by western blotting. The expression of NF-κB and MAPKs was detected by western blot analysis. We found that Astragalin dose-dependently inhibited IL-1β-induced NO and PGE2 production, as well as iNOS and COX-2 expression. Meanwhile, western blot analysis showed that Astragalin inhibited IL-1β-induced NF-κB and MAPK activation in human osteoarthritis chondrocyte. In addition, Astragalin was found to activate PPAR-γ. The inhibition of Astragalin on IL-1β-induced NO and PGE2 production can be reversed by PPAR-γ antagonist GW9662. Astragalin suppressed IL-1β-induced inflammatory mediators via activating PPAR-γ, which subsequently inhibited IL-1β-induced NF-κB and MAPK activation.
CONCLUSIONS:
Astragalin may be a potential agent in the treatment of osteoarthritis.

Animal Research

Astragalin suppresses inflammatory responses via down-regulation of NF-κB signaling pathway in lipopolysaccharide-induced mastitis in a murine model.[Pubmed: 23928506]

Int Immunopharmacol. 2013 Oct;17(2):478-82.

Mastitis is a prevalent and economic disease around the world and defined as infection and inflammation of the mammary gland. Astragalin, a bioactive component isolated from persimmon or Rosa agrestis, has been reported to have anti-inflammatory properties.
METHODS AND RESULTS:
To investigate the potential therapeutic effect of Astragalin in mastitis, a murine model of mastitis was induced by administration of LPS in mammary gland. Astragalin was applied 1h before and 12h after LPS treatment. The results showed that Astragalin attenuated the infiltration of inflammatory cells, the activity of myeloperoxidase (MPO) and the expression of tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6) and interleukin-1β (IL-1β) in a dose-dependent manner. Additionally, Western blotting results showed that Astragalin efficiently blunt decreased nuclear factor-kappaB (NF-κB) activation by inhibiting the degradation and phosphorylation of IκBα and the nuclear translocation of p65.
CONCLUSIONS:
These results suggested that Astragalin exerts anti-inflammatory properties in LPS-mediated mastitis, possibly through inhibiting inhibition of the NF-κB signaling pathway, which mediates the expression of pro-inflammatory cytokines. Astragalin may be a potential therapeutic agent against mastitis.

Preparing Stock Solutions of Astragalin

  1 mg 5 mg 10 mg 20 mg 25 mg
1 mM 2.2302 mL 11.1508 mL 22.3015 mL 44.603 mL 55.7538 mL
5 mM 0.446 mL 2.2302 mL 4.4603 mL 8.9206 mL 11.1508 mL
10 mM 0.223 mL 1.1151 mL 2.2302 mL 4.4603 mL 5.5754 mL
50 mM 0.0446 mL 0.223 mL 0.446 mL 0.8921 mL 1.1151 mL
100 mM 0.0223 mL 0.1115 mL 0.223 mL 0.446 mL 0.5575 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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