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    Obtusin
    Obtusin
    Information
    CAS No. 70588-05-5 Price
    Catalog No.CFN93032Purity>=98%
    Molecular Weight344.31Type of CompoundAnthraquinones
    FormulaC18H16O7Physical DescriptionPowder
    Download     COA    MSDSSimilar structuralComparison (Web)
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    Our products had been exported to the following research institutions and universities, And still growing.
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  • Package
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    Biological Activity
    Description: Reference standards.
    In vitro:
    Biol Pharm Bull. 2007 Nov;30(11):2207-10.
    Anthraquinones from the seeds of Cassia tora with inhibitory activity on protein glycation and aldose reductase.[Pubmed: 17978503]

    METHODS AND RESULTS:
    Nine anthraquinones, aurantio-Obtusin (1), chryso-Obtusin (2), Obtusin (3), chryso-Obtusin-2-O-beta-D-glucoside (4), physcion (5), emodin (6), chrysophanol (7), obtusifolin (8), and obtusifolin-2-O-beta-D-glucoside (9), isolated from an EtOAc-soluble extract of the seeds of Cassia tora, were subjected to in vitro bioassays to evaluate their inhibitory activity against advanced glycation end products (AGEs) formation and rat lens aldose reductase (RLAR).
    CONCLUSIONS:
    Among the isolates, compounds 6 and 8 exhibited a significant inhibitory activity on AGEs formation with observed IC(50) values of 118 and 28.9 microM, respectively, in an AGEs-bovine serum albumin (BSA) assay by specific fluorescence. Furthermore, compounds 6 and 8 inhibited AGEs-BSA formation more effectively than aminoguanidine, an AGEs inhibitor, by indirect AGEs-ELISA. N(epsilon)-Carboxymethyllysine (CML)-BSA formation was also inhibited by compounds 6 and 8. Whereas compounds 1, 4, and 6 showed a significant inhibitory activity on RLAR with IC(50) values of 13.6, 8.8, and 15.9 microM, respectively.
    Obtusin Description
    Source: The seeds of Cassia obtusifolia L.
    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

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    Calculate Dilution Ratios(Only for Reference)
    1 mg 5 mg 10 mg 20 mg 25 mg
    1 mM 2.9044 mL 14.5218 mL 29.0436 mL 58.0872 mL 72.609 mL
    5 mM 0.5809 mL 2.9044 mL 5.8087 mL 11.6174 mL 14.5218 mL
    10 mM 0.2904 mL 1.4522 mL 2.9044 mL 5.8087 mL 7.2609 mL
    50 mM 0.0581 mL 0.2904 mL 0.5809 mL 1.1617 mL 1.4522 mL
    100 mM 0.029 mL 0.1452 mL 0.2904 mL 0.5809 mL 0.7261 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.