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Isoprenaline (Isoproterenol) HCl Adrenergic Receptor agonist

Cat.No.S2566

Isoprenaline (Isoproterenol) HCl is a non-selective beta-adrenergic receptor agonist, used for the treatment of bradycardia and heart block.
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Quality Control

Batch: Purity: 99.88%
99.88

Solubility

In vitro
Batch:

DMSO : 50 mg/mL (201.84 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Water : 50 mg/mL

Ethanol : Insoluble

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In vivo
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Chemical Information, Storage & Stability

Molecular Weight 247.72 Formula

C11H17NO3.HCl

Storage (From the date of receipt)
CAS No. 51-30-9 Download SDF Storage of Stock Solutions

Synonyms NCI-C55630 HCl SMILES CC(C)NCC(C1=CC(=C(C=C1)O)O)O.Cl

Read more about storage stability stock solution CAS number SMILES

Mechanism of Action

Targets/IC50/Ki
β-adrenergic receptor
In vitro

Isoprenaline (300 nM, 3 min) increases particulate cGMP- and cilostamide-inhibited, low-Km cAMP phosphodiesterase (cAMP-PDE) activity by about 100% in intact rat fat cells. Isoprenaline inhibits insulin-stimulated glucose transport activity in rat adipocytes. Isoprenaline, in the absence of adenosine, promotes a time-dependent (t1/2 approximately 2 min) decrease in the accessibility of insulin-stimulated cell surface GLUT4 of > 50%, which directly correlated with the observed inhibition of transport activity. Isoprenaline (5 nM and 10 mM) increases cyclic AMP levels and this effect is potentiated by cilostamide (10 mM), by rolipram, a cyclic AMP-specific PDE (PDE 4) inhibitor (10 mM) and by cyclic GMP-elevating agents (50 nM ANF or 30 nM SNP plus 100 nM DMPPO). Isoprenaline increases the transcriptional activity of Gi alpha-2 gene to 140% of the control value, whereas gene specific hybridization for Gs alpha remains unchanged. Isoprenaline (20 nM) increases the amplitude of total iK and causes a negative shift of approximately 10 mV in the activation curve for iK, both in the absence and in the presence of 300 nM nisoldipine to block the L-type Ca2+ current. Isoprenaline (20 nM) increases the spontaneous pacemaker rate of sino-atrial node pacemaker cells by 16% in rabbit isolated pacemaker cells.

References
  • [4] https://pubmed.ncbi.nlm.nih.gov/8431992/
  • [5] https://pubmed.ncbi.nlm.nih.gov/10662889/

Clinical Trial Information

(data from https://clinicaltrials.gov, updated on 2026-06-05)

NCT Number Recruitment Conditions Sponsor/Collaborators Start Date Phases
NCT06643221 RECRUITING
Leukemia; Hematopoetic Stem Cell Transplantation; Donor Lymphocyte Infusion; CAR T-Cell Therapy; Lymphoma; Cell Therapy
University of Arizona
2018-01-24 EARLY_PHASE1
NCT06473116 NOT_YET_RECRUITING
Out-Of-Hospital Cardiac Arrest
University of Southern Denmark
2025-03 PHASE4
NCT05997732 RECRUITING
Vasoconstriction; Vasodilation
University of Alberta
2023-10-31 PHASE4
NCT05219799 RECRUITING
Obesity; Vasodilation; Healthy
University of Missouri-Columbia
2023-03-14 EARLY_PHASE1
NCT06520982 RECRUITING
Women; Sympathetic Nervous System; Aging; Blood Flow
University of Missouri-Columbia
2024-09-20 EARLY_PHASE1
NCT02725060 ENROLLING_BY_INVITATION
Postural Orthostatic Tachycardia Syndrome; Postural Tachycardia Syndrome; Tachycardia; Arrhythmias, Cardiac; Autonomic Nervous System Diseases; Orthostatic Intolerance; Cardiovascular Diseases; Primary Dysautonomias
Vanderbilt University Medical Center
2016-02

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