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Verapamil HCl (CP-16533-1)

Alias: CP-16533-1; Lekoptin; Izoptin;CP16533-1;CP 16533-1;(±)-Verapamil hydrochloride; Isoptine, Isoptin, Verapamil HCl, Verapamil, Calan, Cordilox, Dexverapamil, Falicard, Finoptin, Hydrochloride, Iproveratril, Verapamil HCl; Manidon; Cardibeltin; Cordilox; (+/-)-VERAPAMIL HYDROCHLORIDE; Calcan hydrochloride; .
Cat No.:V0369 Purity: ≥98%
Verapamil (sold under various trade names such as: Calan, Cordilox, Dexverapamil, Falicard, Finoptin, Hydrochloride, Verapamil, Iproveratril, Isoptin, Isoptine, Izoptin, Lekoptin) is a selective and potent L-type calcium channel blockerin the phenylalkylamine class, it is an FDA approved medication used for the treatment of high blood pressure, angina (chest pain from not enough blood flow to the heart), and supraventricular tachycardia.
Verapamil HCl (CP-16533-1)
Verapamil HCl (CP-16533-1) Chemical Structure CAS No.: 152-11-4
Product category: Calcium Channel
This product is for research use only, not for human use. We do not sell to patients.
Size Price Stock Qty
1g
5g
10g
25g
Other Sizes

Other Forms of Verapamil HCl (CP-16533-1):

  • Verapamil
  • Verapamil-d6 hydrochloride ((±)-Verapamil-d6 hydrochloride; CP-16533-1-d6 hydrochloride)
  • Verapamil-d3-1 hydrochloride ((±)-Verapamil-d3-1 hydrochloride; CP-16533-1-d3-1 hydrochloride)
Official Supplier of:
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Top Publications Citing lnvivochem Products
InvivoChem's Verapamil HCl (CP-16533-1) has been cited by 1 publication
Purity & Quality Control Documentation

Purity: ≥98%

Product Description

Verapamil (sold under various trade names such as: Calan, Cordilox, Dexverapamil, Falicard, Finoptin, Hydrochloride, Verapamil, Iproveratril, Isoptin, Isoptine, Izoptin, Lekoptin) is a selective and potent L-type calcium channel blocker in the phenylalkylamine class, it is an FDA approved medication used for the treatment of high blood pressure, angina (chest pain from not enough blood flow to the heart), and supraventricular tachycardia. It may also be used for the prevention of migraines and cluster headaches. It is given by mouth or by injection into a vein.. Verapamil hydrochloride blocks the L-type Ca2+ channels in smooth and cardiac muscle cells. Verapamil is an antiarrhythmic agent and vasodilator known to reduce the renal clearance of digoxin and induce apoptosis in primary and metastatic colon adenocarcinoma human cell lines in vitro. It has been observed that verapamil can induce currents by itself, presumably by acting on the potassium and chloride leakage.

Biological Activity I Assay Protocols (From Reference)
Targets
Calcium channel; Permeability-glycoprotein (P-gp); CYP3A4[1]
ln Vitro
Citric medicines limit the uptake of EverFluor FL Verapamil (EFV) by TR-iBRB2 cells, while verapamil inhibits the uptake in a concentration-dependent manner with an IC50 of 98.0 μM[4].
ln Vivo
Verapamil, when taken orally, can help control the atrioventricular nodal response in atrial fibrillation and prevent atrioventricular reentry tachycardia[2]. IV verapamil injections are given into femoral veins before ischemia occurs. The incidence of ventricular arrhythmias, such as ventricular tachycardia (VT), ventricular fibrillation (VF), and premature ventricular contractions (PVC), is significantly reduced by verapamil (1 mg/kg) for 45-minute coronary artery occlusion. When the heart experiences ischemia, the total arrhythmia score rises noticeably. The enhancement of total arrhythmia scores brought on by ischemia is significantly inhibited by verapamil (1 mg/kg)[5].
Enzyme Assay
Methods: EverFluor FL Verapamil (EFV) was adopted as the fluorescent probe of verapamil, and its transport across the BRB was investigated with common carotid artery infusion in rats. EFV transport at the inner and outer BRB was investigated with TR-iBRB2 cells and RPE-J cells, respectively. Results: The signal of EFV was detected in the retinal tissue during the weak signal of cell impermeable compound. In TR-iBRB2 cells, the localization of EFV differed from that of LysoTracker® Red, a lysosomotropic agent, and was not altered by acute treatment with NH4Cl. In RPE-J cells, the punctate distribution of EFV was partially observed, and this was reduced by acute treatment with NH4Cl. EFV uptake by TR-iBRB2 cells was temperature-dependent and membrane potential- and pH-independent, and was significantly reduced by NH4Cl treatment during no significant effect obtained by different extracellular pH and V-ATPase inhibitor. The EFV uptake by TR-iBRB2 cells was inhibited by cationic drugs, and inhibited by verapamil in a concentration-dependent manner with an IC50 of 98.0 μM[4].
Cell Assay
The antiarrhythmic effects of verapamil were observed before it was appreciated that it was a calcium ion-antagonist. Intravenous verapamil is highly effective in the termination of paroxysmal reciprocating atrioventricular tachycardia, whether associated with preexcitation or involving the atrioventricular node alone. It consistently slows and regularises the ventricular response in atrial fibrillation, and usually increases the degree of AV-nodal block in atrial flutter though it occasionally induces a return to sinus rhythm. Given orally it is useful for the prophylaxis of atrioventricular reentry tachycardia, and also in modulating the atrioventricular nodal response in atrial fibrillation. Favourable response in ventricular tachycardia is exceptional and then seen in specific benign varieties. Verapamil is the agent of choice for the termination of paroxysmal supraventricular tachycardia[2].
Animal Protocol
Adult male Sprague-Dawley (SD) rats (250 350 g) are used. Verapamil (1 mg/kg) is injected i.v. into a femoral vein 10 min prior to ischemia. A sham group undergoes the same surgical procedures, except the suture underneath the LAD is left untied. In another series of experiment, arrhythmia is induced by Bay K8644, an L-type calcium channel agonist, at a dose of 0.1 mg/kg given i.v. into the FV. Verapamil (1 mg/kg) is administered 10 min prior to Bay K8644. All injections are performed within 30 sec
Rats
Toxicity/Toxicokinetics
Effects During Pregnancy and Lactation
◉ Summary of Use during Lactation
Limited information indicates that maternal doses of verapamil up to 360 mg daily produce low levels in milk. Newborns may have detectable verapamil serum levels, but levels are low. Verapamil would not be expected to cause any adverse effects in breastfed infants, especially if the infant is older than 2 months.
◉ Effects in Breastfed Infants
No adverse reactions have been reported among 3 infants aged 13 days, 8 weeks and 3 months who were exposed to verapamil in breastmilk.
◉ Effects on Lactation and Breastmilk
Verapamil can cause hyperprolactinemia and galactorrhea. The clinical relevance of these findings in nursing mothers is not known. The maternal prolactin level in a mother with established lactation may not affect her ability to breastfeed.
References

[1]. Verapamil as a culprit of palbociclib toxicity. J Oncol Pharm Pract. 2019 Apr;25(3):743-746.

[2]. Krikler DM. Verapamil in arrhythmia. Br J Clin Pharmacol. 1986;21 Suppl 2:183S-189S.

[3]. Anti-arrhythmic effect of Verapamil is accompanied by preservation of cx43 protein in rat heart. PLoS One. 2013 Aug 12;8(8):e71567.

[4]. Effects of metoprolol vs verapamil in patients with stable angina pectoris. The Angina Prognosis Study in Stockholm (APSIS). Eur Heart J. 1996 Jan;17(1):76-81.

[5]. Blood-to-Retina Transport of Fluorescence-Labeled Verapamil at the Blood-Retinal Barrier. Pharm Res. 2018 Mar 12;35(5):93.

Additional Infomation
Verapamil Hydrochloride is the hydrochloride form of Verapamil, which is a phenylalkylamine calcium channel blocking agent. Verapamil inhibits the transmembrane influx of extracellular calcium ions into myocardial and vascular smooth muscle cells, causing dilatation of the main coronary and systemic arteries and decreasing myocardial contractility. This agent also inhibits the drug efflux pump P-glycoprotein which is overexpressed in some multi-drug resistant tumors and may improve the efficacy of some antineoplastic agents. (NCI04)
A calcium channel blocker that is a class IV anti-arrhythmia agent.
See also: Verapamil (has active moiety); Trandolapril; verapamil hydrochloride (component of).
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C27H38N2O4.HCL
Molecular Weight
491.06
Exact Mass
490.259
Elemental Analysis
C, 66.04; H, 8.01; Cl, 7.22; N, 5.70; O, 13.03
CAS #
152-11-4
Related CAS #
Verapamil;52-53-9;Verapamil-d3 hydrochloride;Verapamil-d6 hydrochloride;1185032-80-7;Verapamil-d3-1 hydrochloride;2714485-49-9
PubChem CID
62969
Appearance
White to off-white solid powder
Density
1.058g/cm3
Boiling Point
586.1ºC at 760 mmHg
Melting Point
142 °C (dec.)(lit.)
Flash Point
308.3ºC
LogP
5.895
Hydrogen Bond Donor Count
1
Hydrogen Bond Acceptor Count
6
Rotatable Bond Count
13
Heavy Atom Count
34
Complexity
606
Defined Atom Stereocenter Count
0
SMILES
Cl[H].O(C([H])([H])[H])C1=C(C([H])=C([H])C(=C1[H])C(C#N)(C([H])([H])C([H])([H])C([H])([H])N(C([H])([H])[H])C([H])([H])C([H])([H])C1C([H])=C([H])C(=C(C=1[H])OC([H])([H])[H])OC([H])([H])[H])C([H])(C([H])([H])[H])C([H])([H])[H])OC([H])([H])[H]
InChi Key
DOQPXTMNIUCOSY-UHFFFAOYSA-N
InChi Code
InChI=1S/C27H38N2O4.ClH/c1-20(2)27(19-28,22-10-12-24(31-5)26(18-22)33-7)14-8-15-29(3)16-13-21-9-11-23(30-4)25(17-21)32-6;/h9-12,17-18,20H,8,13-16H2,1-7H3;1H
Chemical Name
2-(3,4-dimethoxyphenyl)-5-[2-(3,4-dimethoxyphenyl)ethyl-methylamino]-2-propan-2-ylpentanenitrile hydrochloride
Synonyms
CP-16533-1; Lekoptin; Izoptin;CP16533-1;CP 16533-1;(±)-Verapamil hydrochloride; Isoptine, Isoptin, Verapamil HCl, Verapamil, Calan, Cordilox, Dexverapamil, Falicard, Finoptin, Hydrochloride, Iproveratril, Verapamil HCl; Manidon; Cardibeltin; Cordilox; (+/-)-VERAPAMIL HYDROCHLORIDE; Calcan hydrochloride; .
HS Tariff Code
2934.99.9001
Storage

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Note: Please store this product in a sealed and protected environment (e.g. under nitrogen), avoid exposure to moisture and light.
Shipping Condition
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
Solubility Data
Solubility (In Vitro)
DMSO:98 mg/mL (199.6 mM)
Water:50 mg/mL (101.8 mM)
Ethanol:12 mg/mL (24.4 mM)
Solubility (In Vivo)
Solubility in Formulation 1: ≥ 5 mg/mL (10.18 mM) (saturation unknown) in 10% DMSO + 90% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution.
Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution.

Solubility in Formulation 2: ≥ 2.08 mg/mL (4.24 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 20.8 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL.
Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution.

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Solubility in Formulation 3: ≥ 2.08 mg/mL (4.24 mM) (saturation unknown) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 20.8 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C,1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution.


Solubility in Formulation 4: ≥ 2.08 mg/mL (4.24 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 20.8 mg/mL clear DMSO stock solution to 900 μL corn oil and mix evenly.

Solubility in Formulation 5: 25 mg/mL (50.91 mM) in PBS (add these co-solvents sequentially from left to right, and one by one), clear solution; with ultrasonication.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 2.0364 mL 10.1821 mL 20.3641 mL
5 mM 0.4073 mL 2.0364 mL 4.0728 mL
10 mM 0.2036 mL 1.0182 mL 2.0364 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.

Calculator

Molarity Calculator allows you to calculate the mass, volume, and/or concentration required for a solution, as detailed below:

  • Calculate the Mass of a compound required to prepare a solution of known volume and concentration
  • Calculate the Volume of solution required to dissolve a compound of known mass to a desired concentration
  • Calculate the Concentration of a solution resulting from a known mass of compound in a specific volume
An example of molarity calculation using the molarity calculator is shown below:
What is the mass of compound required to make a 10 mM stock solution in 5 ml of DMSO given that the molecular weight of the compound is 350.26 g/mol?
  • Enter 350.26 in the Molecular Weight (MW) box
  • Enter 10 in the Concentration box and choose the correct unit (mM)
  • Enter 5 in the Volume box and choose the correct unit (mL)
  • Click the “Calculate” button
  • The answer of 17.513 mg appears in the Mass box. In a similar way, you may calculate the volume and concentration.

Dilution Calculator allows you to calculate how to dilute a stock solution of known concentrations. For example, you may Enter C1, C2 & V2 to calculate V1, as detailed below:

What volume of a given 10 mM stock solution is required to make 25 ml of a 25 μM solution?
Using the equation C1V1 = C2V2, where C1=10 mM, C2=25 μM, V2=25 ml and V1 is the unknown:
  • Enter 10 into the Concentration (Start) box and choose the correct unit (mM)
  • Enter 25 into the Concentration (End) box and select the correct unit (mM)
  • Enter 25 into the Volume (End) box and choose the correct unit (mL)
  • Click the “Calculate” button
  • The answer of 62.5 μL (0.1 ml) appears in the Volume (Start) box
g/mol

Molecular Weight Calculator allows you to calculate the molar mass and elemental composition of a compound, as detailed below:

Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
Instructions to calculate molar mass (molecular weight) of a chemical compound:
  • To calculate molar mass of a chemical compound, please enter the chemical/molecular formula and click the “Calculate’ button.
Definitions of molecular mass, molecular weight, molar mass and molar weight:
  • Molecular mass (or molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). (1 u is equal to 1/12 the mass of one atom of carbon-12)
  • Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol.
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Reconstitution Calculator allows you to calculate the volume of solvent required to reconstitute your vial.

  • Enter the mass of the reagent and the desired reconstitution concentration as well as the correct units
  • Click the “Calculate” button
  • The answer appears in the Volume (to add to vial) box
In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
Step 2: Enter in vivo formulation (This is only a calculator, not the exact formulation for a specific product. Please contact us first if there is no in vivo formulation in the solubility section.)
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Calculation results

Working concentration mg/mL;

Method for preparing DMSO stock solution mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.

Method for preparing in vivo formulation:Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.

(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
             (2) Be sure to add the solvent(s) in order.

Clinical Trial Information
NCT Number Recruitment interventions Conditions Sponsor/Collaborators Start Date Phases
NCT00983242 Completed Has Results Drug: Colchicine
Drug: Verapamil HCl ER
Pharmacokinetics Mutual Pharmaceutical Company, Inc. September 2008 Phase 1
NCT04545151 Recruiting Drug: Verapamil SR 120 mg
Drug: Placebo
Diabetes Mellitus, Type 1 Medical University of Graz February 8, 2021 Phase 2
NCT02209155 Terminated Drug: R-verapamil 75 mg tablet
Drug: Placebo
Episodic Cluster Headache Center Laboratories, Inc. November 2013 Phase 2
NCT00133692 Completed Drug: Verapamil SR/Trandolapril
/Hydrochlorothiazide (HCTZ)
Hypertension
Coronary Artery Disease
University of Florida September 1997 Phase 4
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