Ethaverine hydrobromide
Ethaverine hydrobromide is a Papaverine derivative and vasodilator. Ethaverine hydrobromide inhibits Phosphodiesterase, Tyrosine hydroxylase, and MAO-B. Ethaverine hydrobromide blocks L-type Ca2+ channels, reduces intracellular Ca2+ levels, inhibits platelet adhesion and aggregation, regulates cardiac conduction and heart rate, and increases peripheral and cerebral blood flow. Ethaverine hydrobromide alters cochlear microcirculation, intracochlear Po2, CM potential, and EP in guinea pigs, and induces transient hypotension. Ethaverine hydrobromide is used in the research of peripheral vascular diseases.
For research use only. We do not sell to patients.
- CAS No.: 855701-63-2
- Formula: C24H30BrNO4
- Molecular Weight:476.40
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Storage:
Please store the product under the recommended conditions in the Certificate of Analysis.
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Biological Activity
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Chemical Information
- Purity & Documentation
- References
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Biological Activity
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L-type calcium channel |
MAO-B |
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Cell Line
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Type | Value | Description | References |
|---|---|---|---|---|
| PC-12 | IC50 |
2 μM
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Inhibition of 70 mM K+-induced catecholamine secretion in undifferentiated rat pheochromocytoma PC12 cells measured via scintillation counting of [3H]norepinephrine release, with preincubation and co-incubation with ethaverine during stimulation periods.
Inhibition of 70 mM K+-induced catecholamine secretion in undifferentiated rat pheochromocytoma PC12 cells measured via scintillation counting of [3H]norepinephrine release, with preincubation and co-incubation with ethaverine during stimulation periods.
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8161356 |
Ethaverine (0.3-30 μM) hydrobromide reduces open probability (EC50 ≈ 1 μM) and unitary current amplitude by ~20% in dihydropyridine-sensitive L-type calcium channels from porcine cardiac muscle incorporated into planar lipid bilayers, with near-complete inhibition at 30 μM[4].
Ethaverine hydrobromide inhibits binding of [3H]nitrendipine (Ki ≈ 8.5 μM), [3H]diltiazem (Ki = 1-2 μM), and [3H]verapamil (Ki = 1-2 μM) to porcine cardiac sarcolemma membranes[4].
Ethaverine (1-10 μM) hydrobromide concentration-dependently inhibits K+-induced catecholamine secretion in PC12 cells with an IC50 of ~2 μM, has maximal inhibitory activity at 10 μM, and does not affect bradykinin-induced secretion[5].
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:anesthetized[6]
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Dosage:1 mg/kg
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Administration:i.v.
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Result:Inhibited atrioventricular conduction and heart rate.
Showed partial persistence of inhibitory action, especially at the atrioventricular level, after total cardiac denervation.
Chemical Information
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CAS No. 855701-63-2
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Molecular Weight 476.40
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Formula C24H30BrNO4
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SMILES
CCOC1=CC(C=CN=C2CC3=CC=C(C(OCC)=C3)OCC)=C2C=C1OCC.Br
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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]. Lee SS, et al. Inhibitory effects of ethaverine, a homologue of papaverine, on monoamine oxidase activity in mouse brain. Biological & pharmaceutical bulletin. 2001 Jul;24(7):838-40. [Content Brief]
[2]. Shin JS, et al. Inhibitory effects of ethaverine, a homologue of papaverine, on dopamine content in PC12 cells. Biological & pharmaceutical bulletin. 2001 Jan;24(1):103-5. [Content Brief]
[3]. Prazma J, et al. Effect of ethaverine hydrochloride on cochlear microcirculation. Archives of otolaryngology (Chicago, Ill. : 1960). 1981 Apr;107(4):227-9. [Content Brief]
[4]. Wang Y, et al. Ethaverine, a derivative of papaverine, inhibits cardiac L-type calcium channels. Molecular pharmacology. 1991 Nov;40(5):750-5. [Content Brief]
[5]. Suh BC, et al. Inhibition by ethaverine of catecholamine secretion through blocking L-type Ca2+ channels in PC12 cells. Biochemical pharmacology. 1994 Mar 29;47(7):1262-6. [Content Brief]
[6]. Lacroix P, et al. Activit comparée de l'ethavérine et de la papavérine sur les fonctions cardiaques chronotrope et dromotrope chez le chien anesthésié [Comparative activity of ethaverine and papaverine on chronotropic and dromotropic cardiac functions in the anesthetized dog]. Arch Int Pharmacodyn Ther. 1976 May;221(1):163-76. French. [Content Brief]
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
Ethaverine hydrobromide Related Classifications
HY-B1440A Related Classifications
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- Ethaverine
- 855701-63-2
- Drug Derivative
- Phosphodiesterase (PDE)
- Calcium Channel
- Tyrosine Hydroxylase
- Monoamine Oxidase
- porcine cardiac sarcolemma membranes
- guinea pigs
- porcine cardiac L-type Ca++ channel
- MAO
- tyrosine hydroxylase
- phosphodiesterase
- MAO-B
- PC12 cells
- anesthetized dogs
- neural cells
- Inhibitor
- inhibitor
- inhibit