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    Neostenine
    Information
    CAS No. 477953-07-4 Price
    Catalog No.CFN98725Purity>=98%
    Molecular Weight277.4 Type of CompoundAlkaloids
    FormulaC17H27NO2Physical DescriptionPowder
    Download     COA    MSDS    SDFSimilar structuralComparison (Web)
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    Neostenine Description
    Source: The roots of Stemona sessilifolia
    Biological Activity or Inhibitors: 1. Neostenine shows significant antitussive activities.
    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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    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 3.6049 mL 18.0245 mL 36.049 mL 72.0981 mL 90.1226 mL
    5 mM 0.721 mL 3.6049 mL 7.2098 mL 14.4196 mL 18.0245 mL
    10 mM 0.3605 mL 1.8025 mL 3.6049 mL 7.2098 mL 9.0123 mL
    50 mM 0.0721 mL 0.3605 mL 0.721 mL 1.442 mL 1.8025 mL
    100 mM 0.036 mL 0.1802 mL 0.3605 mL 0.721 mL 0.9012 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.
    Neostenine References Information
    Citation [1]

    Planta Med. 2003 Oct;69(10):914-20.

    Antitussive activity of Stemona alkaloids from Stemona tuberosa.[Pubmed: 14648394]
    Bioactivity-directed fractionation of the crude extract of Stemona tuberosa led to the isolation and characterization of four new stenine-type Stemona alkaloids, namely tuberostemonine J ( 2), tuberostemonine H ( 3), epi-bisdehydrotuberostemonine J ( 4) and Neostenine ( 5), together with the known neotuberostemonine ( 1). These five isolated alkaloids were examined for antitussive activity in guinea pig after cough induction by citric acid aerosol stimulation. In this report, we demonstrated, for the first time, that compounds 1 and 5 showed significant antitussive activities. Further study of the structure-activity relationship on these isolated alkaloids and two synthetic analogues revealed that the saturated tricyclic pyrrolo[3,2,1- jk] benzazepine nucleus is the primary key structure contributing to the antitussive activity and all cis configurations at the three ring junctions are the optimal structure for the antitussive activity of stenine-type Stemona alkaloids.
    Citation [2]

    Planta Med. 2006 Feb;72(3):211-6.

    Intestinal absorption of Stemona alkaloids in a Caco-2 cell model.[Pubmed: 16534724]
    The intestinal absorption of neotuberostemonine and Neostenine, two major bioactive alkaloids of the commonly used antitussive traditional Chinese medicine Stemona tuberosa Lour, was investigated using a Caco-2 monolayer model. Both alkaloids exhibited a high absorptive permeability which was higher for Neostenine [P(app(AB)) = 12.03 +/- 1.14 x 10 (-6) cm/s] than for neotuberostemonine [P(app(AB)) = 9.27 +/- 0.79 x 10 (-6) cm/s], indicating that they are likely to be well absorbed and orally active. Furthermore, both alkaloids were identified to be the substrates of P-glycoprotein and have a transport preference from the basolateral to apical direction with efflux ratios between 2 and 3. Cyclosporin A dose-dependently inhibited the secretory permeability of these alkaloids and abolished their active efflux transport.