Spiradoline
Spiradoline (U-62066), an arylacetamide, is a selective kappa opioid receptor (KOR) agonist with a Ki of 8.6 nM in guinea pig. The Ki values of Spiradoline for μ and δ receptors are 252 nM and 9400 nM, respectively. Spiradoline has potent diuretic, analgesic, antiarrythmic, antitussive, neuroprotective properties and easily penetrates the blood-brain barrier.
For research use only. We do not sell to patients.
- CAS No.: 87151-85-7
- Formula: C22H30Cl2N2O2
- Molecular Weight:425.39
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Storage:
Please store the product under the recommended conditions in the Certificate of Analysis.
All Opioid Receptor Isoforms
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Biological Activity
Ki: 8.6 nM (κ-opioid receptor in guinea pig), 252 nM (μ-receptor) and 9400 nM (δ-receptor)[2]
Using the patch-clamp method in isolated rat cardiac myocytes, indicated that Spiradoline (15 to 500 μM) produces its antiarrythmic effect via blockade of sodium channels (and at the higher doses also of potassium currents) in myocardial tissue. Thus, Spiradoline reduces the peak sodium current, increased the decay rate of the transient outward potassium current, and reduced the sustained plateau potassium amplitude[2].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Animal Model:Juvenile, adolescent and adult Sprague-Dawley male and female rats exposured to repeated restraint[1]
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Dosage:0.1 mg/kg, 0.2 mg/kg, 0.3 mg/kg, and 0.4 mg/kg
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Administration:Subcutaneous injection; once
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Result:Dose-dependently reduced social behaviors in non-stressed adults, producing social avoidance at the highest dose tested.
| NCT Number | Sponsor | Condition | Start Date |
Phase
|
|---|---|---|---|---|
| NCT01329991 | Plexxikon| | 2011-05 | PHASE1 |
Chemical Information
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CAS No. 87151-85-7
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Molecular Weight 425.39
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Formula C22H30Cl2N2O2
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SMILES
ClC1=CC(CC(N([C@H]([C@H](C2)N3CCCC3)CC[C@]42CCCO4)C)=O)=CC=C1Cl
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Synonyms
U-62066
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Please store the product under the recommended conditions in the Certificate of Analysis.
Purity & Documentation
References
[1]. Elena I Varlinskaya, et al. Stress alters social behavior and sensitivity to pharmacological activation of kappa opioid receptors in an age-specific manner in Sprague Dawley rats. Neurobiol Stress. 2018 Sep 11;9:124-132. [Content Brief]
[2]. M-L G Wadenberg. A review of the properties of spiradoline: a potent and selective kappa-opioid receptor agonist. CNS Drug Rev. Summer 2003;9(2):187-98. [Content Brief]
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)