• ChemFaces is a professional high-purity natural products manufacturer.
  • Product Intended Use
  • 1. Reference standards
  • 2. Pharmacological research
  • 3. Inhibitors
  • Home
  • Natural Products
  • Bioactive
  • Screening Libraries
  • Hot Products
  • Plant Catalog
  • Customer Support
  • Product Use Citation
  • About Us
  • Contact Us
  • Natural Products
    (-)-Variabilin
    Information
    CAS No. 370102-93-5 Price
    Catalog No.CFN97945Purity>=98%
    Molecular Weight300.3Type of CompoundPhenols
    FormulaC17H16O5Physical DescriptionPowder
    Download Manual    COA    MSDSSimilar structuralComparison (Web)
    How to Order
    Orders via your E-mail:

    1. Product number / Name / CAS No.
    2. Delivery address
    3. Ordering/billing address
    4. Contact information
    Sent to Email: info@chemfaces.com
    Contact Us
    Order & Inquiry & Tech Support

    Tel: (0086)-27-84237683
    Fax: (0086)-27-84254680
    E-mail: manager@chemfaces.com
    Address: No. 83, CheCheng Rd., WETDZ, Wuhan, Hubei 430056, PRC
    Delivery time
    Delivery & Payment method

    1. Usually delivery time: Next day delivery by 9:00 a.m. Order now

    2. We accept: Wire transfer & Credit card & Paypal & Western Union
    * Packaging according to customer requirements(5mg, 10mg, 20mg and more). We shipped via FedEx, DHL, UPS, EMS and others courier.
    Our products had been exported to the following research institutions and universities, And still growing.
  • Georgia Institute of Technology (USA)
  • Sapienza University of Rome (Italy)
  • Universita' Degli Studi Di Cagli... (Italy)
  • University of Helsinki (Finland)
  • Funda??o Universitária de Desen... (Brazil)
  • University of Liège (Belgium)
  • Tokyo Woman's Christian University (Japan)
  • Anna University (India)
  • University of Otago (New Zealand)
  • University of Bonn (Germany)
  • University of Stirling (United Kingdom)
  • More...
  • Package
    Featured Products
    5-O-Feruloylquinic acid

    Catalog No: CFN92889
    CAS No: 40242-06-6
    Price: $448/5mg
    Ganoderic acid S

    Catalog No: CFN99066
    CAS No: 104759-35-5
    Price: $568/5mg
    Polygalaxanthone III

    Catalog No: CFN90208
    CAS No: 162857-78-5
    Price: $138/20mg
    Voacangine

    Catalog No: CFN92252
    CAS No: 510-22-5
    Price: $463/5mg
    (-)-Pinoresinol

    Catalog No: CFN92287
    CAS No: 81446-29-9
    Price: $268/5mg
    Biological Activity
    Description: 1. Variabilin, a novel inhibitor of human platelet aggregation, it is a potent RGD (Arg-Gly-Asp)-containing antagonist of the fibrinogen receptor glycoprotein IIb-IIIa (GPIIb-IIIa; αIIbβ3) and the vitronectin receptor αvβ3.
    2. Variabilin is an inhibitor of human secretory and cytosolic phospholipase A2 (PLA2) activities that controls eicosanoid production in vitro and in vivo, inhibits neutrophil degranulation and superoxide generation in vitro and shows anti-inflammatory activity after topical or p.o. administration to mice.
    3. Variabilin is an antimicrobial furanosesterterpene.
    4. Variabilin is an important chemotaxonomic marker for the family Irciniidae.
    Targets: Phospholipase (e.g. PLA) | Immunology & Inflammation related
    (-)-Variabilin Description
    Source: The roots of Angelica sinensis
    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.
    Recent ChemFaces New Products and Compounds
    Methylnissolin-3-O-glucoside

    Catalog No: CFN93199
    CAS No: 94367-42-7
    Price: $218/20mg
    Ginsenoside F5

    Catalog No: CFN95034
    CAS No: 189513-26-6
    Price: $298/20mg
    Carlinoside

    Catalog No: CFN90720
    CAS No: 59952-97-5
    Price: $318/5mg
    3,3',4',5,6,7,8-heptamethoxyflavon...

    Catalog No: CFN95021
    CAS No: 1178-24-1
    Price: $268/10mg
    3,4-O-dimethylcedrusin

    Catalog No: CFN95026
    CAS No: 166021-14-3
    Price: $388/10mg
    Astragalin

    Catalog No: CFN98733
    CAS No: 480-10-4
    Price: $138/20mg
    Nodakenin

    Catalog No: CFN90232
    CAS No: 495-31-8
    Price: $138/20mg
    Neoschaftoside

    Catalog No: CFN92071
    CAS No: 61328-41-4
    Price: $368/5mg
    Recently, ChemFaces products have been cited in many studies from excellent and top scientific journals

    Cell. 2018 Jan 11;172(1-2):249-261.e12.
    doi: 10.1016/j.cell.2017.12.019.

    PMID: 29328914

    Mol Cell. 2017 Nov 16;68(4):673-685.e6.
    doi: 10.1016/j.molcel.2017.10.022.

    PMID: 29149595

    Scientific Reports 2017 Dec 11;7(1):17332.
    doi: 10.1038/s41598-017-17427-6.

    PMID: 29230013

    Molecules. 2017 Oct 27;22(11). pii: E1829.
    doi: 10.3390/molecules22111829.

    PMID: 29077044

    J Cell Biochem. 2018 Feb;119(2):2231-2239.
    doi: 10.1002/jcb.26385.

    PMID: 28857247

    Phytomedicine. 2018 Feb 1;40:37-47.
    doi: 10.1016/j.phymed.2017.12.030.

    PMID: 29496173
    Calculate Dilution Ratios(Only for Reference)
    1 mg 5 mg 10 mg 20 mg 25 mg
    1 mM 3.33 mL 16.65 mL 33.3 mL 66.6001 mL 83.2501 mL
    5 mM 0.666 mL 3.33 mL 6.66 mL 13.32 mL 16.65 mL
    10 mM 0.333 mL 1.665 mL 3.33 mL 6.66 mL 8.325 mL
    50 mM 0.0666 mL 0.333 mL 0.666 mL 1.332 mL 1.665 mL
    100 mM 0.0333 mL 0.1665 mL 0.333 mL 0.666 mL 0.8325 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.
    (-)-Variabilin References Information
    Citation [1]

    J. Biol. Chem., 1996, 271(30):17785-90.

    Variabilin, a Novel RGD-containing Antagonist of Glycoprotein IIb-IIIa and Platelet Aggregation Inhibitor from the Hard Tick Dermacentor variabilis*[Reference: WebLink]
    A novel inhibitor of human platelet aggregation, named variabilin, was isolated from salivary glands of the hard tick Dermacentor variabilis using a combination of gel filtration and high pressure liquid chromatography. Variabilin was a potent antagonist of the fibrinogen receptor glycoprotein IIb-IIIa (GPIIb-IIIa; αIIbβ3) and the vitronectin receptor αvβ3. Amino acid sequence analysis by Edman degradation revealed that it has 47 residues, with a molecular weight of 4968.5. Like many other naturally occurring antagonists of GPIIb-IIIa, variabilin contains the RGD (Arg-Gly-Asp) motif. However, unlike the RGD-containing antagonists of GPIIb-IIIa, the RGD sequence of variabilin is not positioned in a loop bracketed by cysteine residues. It has little sequence homology to the other known naturally occurring antagonists of GPIIb-IIIa, including the disintegrins from snakes, decorsin and ornatin from leeches, and disagregin from soft ticks. Variabilin is the first RGD-containing antagonist isolated from ticks.