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    Natural Products
    Specioside B
    Specioside B
    Information
    CAS No. 126589-95-5 Price $368 / 5mg
    Catalog No.CFN95165Purity>=98%
    Molecular Weight460.4Type of CompoundPhenols
    FormulaC23H24O10Physical DescriptionPowder
    Download     COA    MSDSSimilar structuralComparison (Web)  (SDF)
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    Address: No. 83, CheCheng Rd., WETDZ, Wuhan, Hubei 430056, PRC
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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 / $368 / In-stock
    Other Packaging *Packaging according to customer requirements(100uL/well, 200uL/well and more), and Container use Storage Tube With Screw Cap
    Our products had been exported to the following research institutions and universities, And still growing.
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    Specioside B

    Specioside B
    Product Name Specioside B
    CAS No.: 126589-95-5
    Catalog No.: CFN95165
    Molecular Formula: C23H24O10
    Molecular Weight: 460.4 g/mol
    Purity: >=98%
    Type of Compound: Phenols
    Physical Desc.: Powder
    Source: The stem barks of Stereospermum acuminatissimum K. Schum.
    Solvent: DMSO, Pyridine, Methanol, Ethanol, etc.
    Price: $368 / 5mg
    Inquire / Order: manager@chemfaces.com
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    Size /Price /Stock 10 mM * 100 uL in DMSO / Inquiry / In-stock
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    Description: Reference standards.
    Specioside B Description
    Source: The stem barks of Stereospermum acuminatissimum K. Schum.
    Solvent: DMSO, Pyridine, Methanol, Ethanol, 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 2.172 mL 10.8601 mL 21.7202 mL 43.4405 mL 54.3006 mL
    5 mM 0.4344 mL 2.172 mL 4.344 mL 8.6881 mL 10.8601 mL
    10 mM 0.2172 mL 1.086 mL 2.172 mL 4.344 mL 5.4301 mL
    50 mM 0.0434 mL 0.2172 mL 0.4344 mL 0.8688 mL 1.086 mL
    100 mM 0.0217 mL 0.1086 mL 0.2172 mL 0.4344 mL 0.543 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:
    Fitoterapia. 2012 Jan;83(1):204-8.
    Chemical constituents of Stereospermum acuminatissimum and their urease and α-chymotrypsin inhibitions.[Pubmed: 22062354 ]

    METHODS AND RESULTS:
    Phytochemical investigation of the stem bark of Stereospermum acuminatissimum K. Schum. resulted in the isolation of 21 compounds, including two new guanine derivatives, 1,3,7-trimethylguanin-1/3-ium (1) and 3,7-dimethylguanin-1/3-ium (2), and one new phenolic long chain ester, 2-(4-hydroxyphenyl)ethyl hentriacontanoate (3). The known compounds were identified as sterequinones A, F, and H (4, 5, and 6), zenkequinones A-B (7-8), p-coumaric acid (9), methyl caffeate (10), caffeic acid (11), psilalic acid (12), syringaldehyde (13), norviburtinal (14), specioside (15), verminoside (16), tyrosol (17), eutigoside A (18), ellagic acid (19), atranorin (20), and ursolic acid (21). The metabolites were screened for their potential against urease and α-chymotrypsin enzymes, as urease is targeted in peptic ulcer while α-chymotrypsin is used to remove protein debris in ulcer.
    CONCLUSIONS:
    Compound 20 was found to be excellent urease inhibitor with IC(50) value of 18.2 ± 0.03 μM. Compounds 13 and 18-20 are reported for the first time from the genus Stereospermum. The chemotaxonomic significance of the isolated compounds was also described.
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