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    Oblongine
    Oblongine
    Information
    CAS No. 60008-01-7 Price
    Catalog No.CFN97013Purity>=98%
    Molecular Weight314.4 Type of CompoundAlkaloids
    FormulaC19H24NO3Physical DescriptionPowder
    Download Manual    COA    MSDSSimilar structuralComparison (Web)
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    Biological Activity
    Description: Oblongine chloride may have potential haemodynamic effects, it can cause a dose-dependent reduction of systolic and diastolic blood pressure, and that these effects are not mediated by β-adrenergic receptor stimulation.
    In vitro:
    Gen Pharmacol. 1993 Mar;24(2):299-304.
    Effects of oblongine chloride, an alkaloid from Leontice leontopetalum on guinea-pig isolated smooth muscle and heart.[Pubmed: 8482513]
    1. The effects of (-)Oblongine chloride, a quaternary alkaloid from Leontice leontopetalum, on guinea-pig isolated ileal longitudinal segments, main pulmonary artery rings, spontaneously-beating atrium and isolated perfused heart were studied.
    METHODS AND RESULTS:
    2. Oblongine chloride (3 x 10(-5)-10(-3) M) caused concentration-dependent relaxation of ileum, an effect which was not blocked by propranolol (10(-6) M) alone or in combination with prazosin (3 x 10(-8) M), or by indomethacin (10(-6) M), but was reduced by desensitization of the preparation by prior exposure to 3 x 10(-5) M ATP and, at high concentrations of Oblongine, by a combination of propranolol and yohimbine (3 x 10(-6) M). 3. Oblongine chloride (10(-5)-3 x 10(-3) M) caused concentration-dependent relaxation of epinephrine-precontracted pulmonary artery. This effect was not affected by propranolol or by indomethacin but was significantly attenuated by pretreatment with 3 x 10(-5) M ATP and potentiated by pretreatment with quinacrine (10(-5) M). 4. Oblongine chloride (10(-5) M-3 x 10(-3) M) caused concentration-dependent increase in the contractility but did not affect the rate of the atrium. Similar effects were obtained with isolated perfused heart except that large concentrations of Oblongine (10(-3), 3 x 10(-3) M) inhibited both contractility and rate of the heart.
    CONCLUSIONS:
    The inotropic effects of Oblongine on the atrium were not blocked by propranolol or indomethacin but were significantly blocked by quinacrine.
    In vivo:
    Phytother. Res., 1995, 9(1):60-3.
    Cardiovascular effects of oblongine chloride, an alkaloid from Leontice leontopetalum, in the anaesthetized guinea-pig[Reference: WebLink]
    The effects of (61)Oblongine chloride, a quaternary alkaloid from Leontice leontopetalum on blood pressure, heart rate and blood flow of the anaesthetized guinea-pig were studied.
    METHODS AND RESULTS:
    At doses ranging from 0.5 mg/kg to 30 mg/kg, i.v., Oblongine chloride caused a dose-dependent reduction of systolic and diastolic blood pressure. These doses were associated with an increase in heart rate. Propranolol (5 mg/kg) failed to block the effects of Oblongine chloride on systolic and diastolic blood pressure but significantly reduced the increase in heart rate observed with low doses (0.5–6 mg/kg) of Oblongine chloride. In doses ranging from 0.05 mg/kg to 0.5 mg/kg, Oblongine chloride caused a small increase in blood flow. Larger doses (1.5, 4.5, 15 and 30 mg/kg) caused an initial decrease followed by an increase of blood flow. The net effect of cumulative doses was an increase in blood flow over the control value.
    CONCLUSIONS:
    These observations suggest that Oblongine chloride may have potential haemodynamic effects and that these effects are not mediated by β-adrenergic receptor stimulation.
    Oblongine Description
    Source: The roots of Stephania tetrandra
    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 3.1807 mL 15.9033 mL 31.8066 mL 63.6132 mL 79.5165 mL
    5 mM 0.6361 mL 3.1807 mL 6.3613 mL 12.7226 mL 15.9033 mL
    10 mM 0.3181 mL 1.5903 mL 3.1807 mL 6.3613 mL 7.9517 mL
    50 mM 0.0636 mL 0.3181 mL 0.6361 mL 1.2723 mL 1.5903 mL
    100 mM 0.0318 mL 0.159 mL 0.3181 mL 0.6361 mL 0.7952 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.