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    Natural Products
    Dichotomine B
    Dichotomine B
    Information
    CAS No. 755036-41-0 Price $463 / 5mg
    Catalog No.CFN95193Purity>=98%
    Molecular Weight272.3Type of CompoundAlkaloids
    FormulaC14H12N2O4Physical DescriptionPowder
    Download COA    MSDSSimilar structuralComparison
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    * Packaging according to customer requirements(5mg, 10mg, 20mg and more). We shipped via FedEx, DHL, UPS, EMS and others courier.
    According to end customer requirements, ChemFaces provide solvent format. This solvent format of product intended use: Signaling Inhibitors, Biological activities or Pharmacological activities.
    Size /Price /Stock 10 mM * 1 mL in DMSO / $222.6 / In-stock
    Other Packaging *Packaging according to customer requirements(100uL/well, 200uL/well and more), and Container use Storage Tube With Screw Cap
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    Dichotomine B

    Dichotomine B
    Product Name Dichotomine B
    CAS No.: 755036-41-0
    Catalog No.: CFN95193
    Molecular Formula: C14H12N2O4
    Molecular Weight: 272.3 g/mol
    Purity: >=98%
    Type of Compound: Alkaloids
    Physical Desc.: Powder
    Source: The herbs of Stellaria dichotoma
    Solvent: Chloroform, Dichloromethane, Ethyl Acetate, DMSO, Acetone, etc.
    Price: $463 / 5mg
    Download: COA    MSDS
    Similar structural: Comparison
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  • Related Screening Libraries
    Size /Price /Stock 10 mM * 100 uL in DMSO / Inquiry / In-stock
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    Description: Reference standards.
    Dichotomine B Description
    Source: The herbs of Stellaria dichotoma
    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.
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    Calculate Dilution Ratios(Only for Reference)
    1 mg 5 mg 10 mg 20 mg 25 mg
    1 mM 3.6724 mL 18.3621 mL 36.7242 mL 73.4484 mL 91.8105 mL
    5 mM 0.7345 mL 3.6724 mL 7.3448 mL 14.6897 mL 18.3621 mL
    10 mM 0.3672 mL 1.8362 mL 3.6724 mL 7.3448 mL 9.1811 mL
    50 mM 0.0734 mL 0.3672 mL 0.7345 mL 1.469 mL 1.8362 mL
    100 mM 0.0367 mL 0.1836 mL 0.3672 mL 0.7345 mL 0.9181 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.
    Protocol
    Structure Identification:
    J Nat Prod. 2004 Sep;67(9):1464-9.
    Structures of new beta-carboline-type alkaloids with antiallergic effects from Stellaria dichotoma(1,2).[Pubmed: 21090796 ]
    The aqueous ethanolic extract from the roots of Stellaria dichotoma showed an antiallergic effect on ear passive cutaneous anaphylaxis (PCA) reaction in mice (in vivo) and inhibitory activity on the release of beta-hexosaminidase in RBL-2H3 cells (in vitro).
    METHODS AND RESULTS:
    From the aqueous ethanolic extract, new beta-carboline-type alkaloids, dichotomine A (1), Dichotomine B (2), dichotomine C (3), and dichotomine D (4) and dichotomides I (5) and II (6), were isolated. The structures of the new constituents (1-6) were determined on the basis of chemical and physicochemical evidence, including the application of the modified Mosher's method.
    CONCLUSIONS:
    The effects of the isolated constituents on the release of beta-hexosaminidase in RBL-2H3 cells were examined, and 3 was found to show inhibitory activity (IC(50) = 62 microM). Moreover, 3 also inhibited the releases of antigen-IgE-mediated TNF-alpha and IL-4 (19 and 15 microM, respectively) in RBL-2H3 cells, both of which participate in the late phase of type I allergic reactions.
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