(-)-Epiafzelechin 3-O-gallate

(-)-Epiafzelechin 3-O-gallate
Product Name (-)-Epiafzelechin 3-O-gallate
CAS No.: 108907-43-3
Catalog No.: CFN95081
Molecular Formula: C22H18O9
Molecular Weight: 426.4 g/mol
Purity: >=98%
Type of Compound: Flavonoids
Physical Desc.: Powder
Source: The leaves of Green Tea
Solvent: Chloroform, Dichloromethane, Ethyl Acetate, DMSO, Acetone, etc.
Price: $388/5mg
(-)-Epiafzelechin 3-O-gallate has antioxidant activity.
Inquire / Order: manager@chemfaces.com
Technical Inquiries: service@chemfaces.com
Tel: +86-27-84237783
Fax: +86-27-84254680

Address:
1 Building, No. 83, CheCheng Rd., Wuhan Economic and Technological Development Zone, Wuhan, Hubei 430056, PRC
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

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.
  • RSC Adv.2023, 13(9):6317-6326.
  • Food Funct.2020, 11(2):1322-1333.
  • J Nat Med.2017, 71(2):457-462
  • Planta Med.2022, a-1876-3009.
  • Antioxidants (Basel).2020, 9(2):E99
  • Molecules.2023, 28(7):3039.
  • Korean Journal of Pharmacognosy2019, 50(4):285-290
  • Front Chem.2024, 12:1385844.
  • J of Pharmaceutical Analysis2020, doi: 10.1016
  • Braz J Med Biol Res. 2016, 49(7)
  • 3,9-Dihydroxypterocarpan

    Catalog No: CFN97043
    CAS No: 61135-91-9
    Price: Inquiry(manager@chemfaces.com)
    11-Oxomogroside III

    Catalog No: CFN92192
    CAS No: 952481-53-7
    Price: $318/10mg
    Sagittatoside B

    Catalog No: CFN90211
    CAS No: 118525-36-3
    Price: $298/10mg
    Parishin B

    Catalog No: CFN93113
    CAS No: 174972-79-3
    Price: $80/20mg
    Soyasaponin Aa

    Catalog No: CFN90455
    CAS No: 117230-33-8
    Price: Inquiry(manager@chemfaces.com)
    Molecules. 2012 Nov 27;17(12):14037-45.
    Antioxidant phenolic compounds from Pu-erh tea.[Pubmed: 23187287 ]

    METHODS AND RESULTS:
    Eight compounds were isolated from the water extract of Pu-erh tea and their structures were elucidated by NMR and MS as gallic acid (1), (+)-catechin (2), (−)-epicatechin (3), (−)-epicatechin-3-O-gallate (4), (−)-epigallocatechin-3-O-gallate (5), (-)-Epiafzelechin 3-O-gallate (6), kaempferol (7), and quercetin (8). Their in vitro antioxidant activities were assessed by the DPPH and ABTS scavenging methods with microplate assays. The relative order of DPPH scavenging capacity for these compounds was compound 8 > compound 7 > compound 1 > compound 6 > compound 4 ≈ compound 5 > compound 2 > VC (reference) > compound 3, and that of ABTS scavenging capacity was compound 1 > compound 2 > compound 7 ≈ compound 8 > compound 6 > compound 5 > compound 4 > VC (reference) > compound 3.
    CONCLUSIONS:
    The results showed that these phenolic compounds contributed to the antioxidant activity of Pu-erh tea.
    Zhongguo Zhong Yao Za Zhi. 2013 May;38(9):1386-9.
    Chemical constituents of Camellia sinensis var. assamica.[Pubmed: 23944074]
    To study the chemical constituents of Camellia sinensis var. assamica.
    METHODS AND RESULTS:
    The compounds were isolated by NKA Macroporous resin silica gel, Sephadex LH-20, RP-C18 column chromatographies and semi-preparative HPLC,and their structures were elucidated by physicochemical properties and spectral analysis. Thirteen compounds were isolated and identified as caffeine (1), theobromine (2), gallic acid (3), (+)-catechin (4), ampelopsin (5), (-)-epicatechin (6), (-)-epiafzelechin (7), (-)-epicatechin-3-O-gallate (8), (-)-Epiafzelechin 3-O-gallate(9) , (+)-catechin-3-O-gallate (10) , (+)-afzelechin-3-O-gallate (11), quemefin-3-O-alpha-L-arabinopyranosid (12), and (-)-epicatechin-3-O-p-hydroxybenzoate (13).
    CONCLUSIONS:
    Compounds 2, 5, 10-13 were isolated from this plant for the first time, and compound 11 is a new natural product.
    20-O-Glucoginsenoside Rf

    Catalog No: CFN95036
    CAS No: 68406-27-9
    Price: $318/5mg
    Kaempferol 3-O-beta-(6''-p-coumaroyl)glucopyranosyl(1->2)-alpha-L-rhamnopyranoside

    Catalog No: CFN95089
    CAS No: 111957-48-3
    Price: $338/10mg
    1,3,6-Trihydroxy-2-methylanthraquinone 3-O-alpha-L-rhamnosyl-(1->2)-beta-D-glucoside

    Catalog No: CFN95096
    CAS No: 87686-88-2
    Price: $318/10mg
    Rhamnetin 3-galactoside

    Catalog No: CFN95116
    CAS No: 62858-07-5
    Price: $318/10mg
    Apigenin 4'-O-(2'',6''-di-O-E-p-coumaroyl)glucoside

    Catalog No: CFN95276
    CAS No: 71781-79-8
    Price: $318/10mg
    Sibiricose A4

    Catalog No: CFN95298
    CAS No: 241125-73-5
    Price: $318/5mg
    Tetillapyrone

    Catalog No: CFN95404
    CAS No: 363136-43-0
    Price: $413/5mg
    Epigambogellic acid

    Catalog No: CFN95438
    CAS No: 1352191-85-5
    Price: $318/5mg
    Oxytroflavoside B

    Catalog No: CFN95490
    CAS No: 1391144-81-2
    Price: $318/10mg
    Ganolucidic acid B

    Catalog No: CFN95513
    CAS No: 98683-75-1
    Price: $413/5mg