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    Conivaptan HCl (YM 087)
    Conivaptan HCl (YM 087)

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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 #: V1484
    CAS #: 168626-94-6Purity ≥98%

    Description: Conivaptan HCl (also known as YM 087, trade name Vaprisol) is a novel, potent, orally bioavailable, and non-peptide vasopressin V1A and V2 receptor antagonist with Ki values of 0.48 and 3.04 nM for rat liver V1A receptor and rat kidney V2 receptor respectively. It is used in the treatment of euvolemic and hypervolemic hyponatremia. It was approved in 2004 for hyponatremia (low blood sodium levels) caused by syndrome of inappropriate antidiuretic hormone (SIADH), and there is some evidence it may be effective in heart failure. Conivaptan inhibits two of the three subtypes of the vasopressin receptor (V1a and V2). Effectively, it causes iatrogenic nephrogenic diabetes insipidus.

    References: Eur J Pharmacol. 2005 Jan 10;507(1-3):145-51; J Hepatol. 2003 Jun;38(6):755-61.

    Related CAS#:  210101-16-9(free base)

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    Molecular Weight (MW)535.04
    CAS No.168626-94-6 (HCl)
    Storage-20℃ for 3 years in powder form
    -80℃ for 2 years in solvent
    Solubility (In vitro)DMSO: 107 mg/mL (200 mM)
    Water: <1 mg/mL
    Ethanol: 7 mg/mL (13.1 mM)
    Other infoChemical Name: N-[4-(2-Methyl-4,5-dihydro-3H-imidazo[4,5-d][1]benzazepine-6-carbonyl)phenyl]-2-phenylbenzamide hydrochloride
    InChi Code: InChI=1S/C32H26N4O2.ClH/c1-21-33-28-19-20-36(29-14-8-7-13-27(29)30(28)34-21)32(38)23-15-17-24(18-16-23)35-31(37)26-12-6-5-11-25(26)22-9-3-2-4-10-22;/h2-18H,19-20H2,1H3,(H,33,34)(H,35,37);1H
    SMILES Code: O=C(NC1=CC=C(C(N2CCC(NC(C)=N3)=C3C4=CC=CC=C42)=O)C=C1)C5=CC=CC=C5C6=CC=CC=C6.[H]Cl 
    SynonymsYM-087 HCl; YM 087; YM087; Conivaptan; Conivaptan; Vaprisol 

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    In Vitro

    In vitro activity: Conivaptan (hydrochloride) is a non-peptide antagonist of vasopressin receptor, with Ki values of 0.48 and 3.04 nM for rat liver V1A receptor and rat kidney V2 receptor respectively.

    In VivoConivaptan (0.03, 0.1 and 0.3 mg/kg i.v.) dose-dependently increases urine volume and reduces urine osmolality in both myocardial infarction and sham-operated rats. Conivaptan (0.3 mg/kg i.v.) significantly reduces right ventricular systolic pressure, left ventricular end-diastolic pressure, lung/body weight and right atrial pressure in myocardial infarction rats. Conivaptan (0.3 mg/kg i.v.) significantly increases dP/dt(max)/left ventricular pressure in myocardial infarction rats. Conivaptan produces an acute increase in urine volume (UV), a reduction in osmolality (UOsm) and, at the end of the investigation, cirrhotic rats receiving the V(1a)/V(2)-AVP receptor antagonist does not show hyponatremia or hypoosmolality. Conivaptan also normalizes U(Na)V without affecting creatinine clearance and arterial pressure. Conivaptan (0.01 to 0.1 mg/kg i.v.) exerts a dose-dependent diuretic effect in dogs without an increase in the urinary excretion of electrolytes, inhibits the pressor effect of exogenous vasopressin in a dose-dependent manner (0.003 to 0.1 mg/kg i.v.) and, at the highest dose (0.1 mg/kg i.v.), almost completely blocks vasoconstriction caused by exogenous vasopressin. Conivaptan (0.1 mg/kg i.v.) improves cardiac function, as evidenced by significant increases in left ventricular dP/dtmax, cardiac output and stroke volume, and reduces preload and afterload, as evidenced by significant decreases in left ventricular end-diastolic pressure and total peripheral vascular resistance in dogs with congestive heart failure. 
    Animal modelRats
    Formulation & Dosage0.03, 0.1 and 0.3 mg/kg i.v.
    ReferencesEur J Pharmacol. 2005 Jan 10;507(1-3):145-51; J Hepatol. 2003 Jun;38(6):755-61.

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


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