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    Indacaterol Maleate (QAB149)
    Indacaterol Maleate (QAB149)

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    This product is for research use only, not for human use. We do not sell to patients.
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    InvivoChem Cat #: V1100
    CAS #: 753498-25-8 Purity ≥98%

    Description: Indacaterol Maleate (formerly known as QAB149; QAB-149; Onbrez Breezhale; arcapta neohaler; Onbrez), the maleate salt of indacaterol, is an approved anti-COPD (chronic obstructive pulmonary disease) drug acting as an ultra-long-acting β-adrenoceptor agonist developed by Novartis. In activates β-adrenoceptor with a pKi of 7.36. Indacaterol was approved in 2009 by FDA for the treatment of chronic obstructive pulmonary disease (COPD). It is delivered as an aerosol formulation through a dry powder inhaler. Indacaterol inhibits cAMP production in Chinese hamster ovary cells stably transfected with human β2 adrenoceptors with pEC50 of 8.06.

    References: J Pharmacol Exp Ther. 2006 May;317(2):762-70; J Pharmacol Exp Ther. 2008 Jan;324(1):270-5.

    Related CAS #: 753498-25-8 (malate)   312753-06-3 (free base) 

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    • 香港大学
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    Molecular Weight (MW)508.56
    FormulaC24H28N2O3.C4H4O4
    CAS No.753498-25-8
    Storage-20℃ for 3 years in powder form
    -80℃ for 2 years in solvent
    Solubility (In vitro)DMSO: 102 mg/mL (200.6 mM)
    Water: <1 mg/mL
    Ethanol: <1 mg/mL
    Solubility (In vivo)4% DMSO+30% PEG 300+ddH2O: 10mg/mL 
    SynonymsQAB149; Indacaterol maleate; QAB-149; QAB 149; trade name Onbrez Breezhale; arcapta neohaler; Onbrez.


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    In Vitro

    In vitro activity: Indacaterol inhibits cAMP production in Chinese hamster ovary cells stably transfected with human β2 adrenoceptors with pEC50 of 8.06. Indacaterol inhibits electrically induced contraction on the electrically stimulated guinea pig trachea in a concentration-dependent manner with pEC50 of 8.23. Indacaterol induces a concentration-dependent inotropic effect with maximal efficacy of 75% in the isolated guinea pig left atrium. Indacaterol reverses the carbachol-induced contraction in a concentration-dependent manner with IC50 of 37 nM in human small airways. Indacaterol concentration dependently reverses the serotonin-induced contraction with IC50 of 10.5 nM in rat small airways. Indacaterol has the highest intrinsic efficacy of 53% in rat small airways and 73% in human small airways. Indacaterol (10 μM) induces close to full inhibition of the EFS-induced contraction of isolated human bronchi and the effect lasts 12 hours. Indacaterol inhibits the IgE-dependent release of histamine from mast cells with the intrinsic activity (Emax of a long-acting Indacaterol/Emax of Isoprenaline) of 1.03. Indacaterol inihbits cAMP release from human airway smooth muscle with pEC50 of 8.53 and Emax of 48%. Indacaterol appears to have a reduced efficacy compared with the CHO-K1 data in the primary ASM cells.

    In VivoIndacaterol (6.7 μg/kg) inhibits 5-HT-induced bronchoconstriction with a maximal effect of 85% in the conscious guinea pig. Indacaterol (12.5 μg/kg) dose-dependently inhibits methacholine-induced bronchoconstriction with a maximal effect of 85% in the anesthetized rhesus monkey.
    Animal modelGuinea pigs
    Formulation & Dosage6.7 μg/kg
    References

    J Pharmacol Exp Ther. 2006 May;317(2):762-70; J Pharmacol Exp Ther. 2008 Jan;324(1):270-5.


    These protocols are for reference only. InvivoChem does not independently validate these methods.

     
    Indacaterol Maleate
    Potency and intrinsic efficacy for the compounds in the human (left) and rat (right) small airways contracted to 70% of the maximal closure with carbachol and serotonin, respectively. J Pharmacol Exp Ther. 2008 Jan;324(1):270-5. 
     
    Indacaterol Maleate
    Onset of action for the compounds in the human (left) and rat (right) small airways contracted to 70% of the maximal closure with carbachol and serotonin, respectively. J Pharmacol Exp Ther. 2008 Jan;324(1):270-5. 
     
    Indacaterol Maleate
    Duration of action for the compounds in the human small airways contracted to 50% of the maximal closure with carbachol. J Pharmacol Exp Ther. 2008 Jan;324(1):270-5. 


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