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Dexverapamil

Alias: Dexverapamil; Dexverapamilum; EINECS 253-878-4
Cat No.:V32667 Purity: ≥98%
Verapamil HCl ((±)-Verapamil HCl) is a calcium channel blocker and a potent, orally bioactive, first-generation P-glycoprotein (P-gp) inhibitor.
Dexverapamil
Dexverapamil Chemical Structure CAS No.: 38321-02-7
Product category: New2
This product is for research use only, not for human use. We do not sell to patients.
Size Price Stock Qty
500mg
1g
5g
Other Sizes

Other Forms of Dexverapamil:

  • 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
Product Description
Dexverapamil is the R-enantiomer of verapamil, a calcium channel blocker. Dexverapamil competitively inhibits the multidrug resistance efflux pump P-glycoprotein (MDR-1), thereby potentially increasing the effectiveness of a wide range of antineoplastic drugs which are inactivated by MDR-1 mechanisms. Verapamil((±)-Verapamil) is a calcium channel blocker and a potent, orally bioactive, first-generation P-glycoprotein (P-gp) inhibitor. Verapamil HCl also inhibits CYP3A4 and has been used in the treatment of hypertension, cardiac arrhythmias, and angina.
Biological Activity I Assay Protocols (From Reference)
Targets
Calcium channel
ln Vitro
Uptake of EverFluor FL Verapamil (EFV) by TR-iBRB2 cells is blocked by the cationic medication Verapamil in a concentration-dependent manner with an IC50 of 98.0 μM [4].
ln Vivo
In addition to controlling the atrioventricular nodal response in atrial fibrillation, oral verapamil can be utilized to prevent atrioventricular reentrant tachycardia [2]. Before ischemia, verapamil was administered intravenously into the femoral vein. Within 45 minutes following coronary artery closure, the incidence of ventricular arrhythmias, such as ventricular tachycardia (VT), ventricular fibrillation (VF), and premature ventricular contractions (PVCs), was considerably reduced by verapamil (1 mg/kg). An ischemic heart resulted in a considerable increase in the total arrhythmia score. The total arrhythmia score's ischemia-induced increase was dramatically inhibited by verapamil (1 mg/kg) [5].
ADME/Pharmacokinetics
Metabolism / Metabolites
Dexverapamil has known human metabolites that include 2-(3,4-dimethoxyphenyl)acetaldehyde, (R)-D-617, arverapamil, and (2R)-5-{[2-(3,4-dimethoxyphenyl)ethyl](methyl)amino}-2-(4-hydroxy-3-methoxyphenyl)-2-(propan-2-yl)pentanenitrile.
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]. Gowarty JL, et al. 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]. Zhou P, et al. Anti-arrhythmic effect of Verapamil is accompanied by preservation of cx43 protein in rat heart. PLoS One. 2013 Aug 12;8(8):e71567.
[4]. Rehnqvist N,et al. 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]. Kubo Y, et al. Blood-to-Retina Transport of Fluorescence-Labeled Verapamil at the Blood-Retinal Barrier. Pharm Res. 2018 Mar 12;35(5):93
Additional Infomation
Dexverapamil is a 2-(3,4-dimethoxyphenyl)-5-{[2-(3,4-dimethoxyphenyl)ethyl](methyl)amino}-2-(propan-2-yl)pentanenitrile that has R configuration. It competitively inhibits the multidrug resistance efflux pump P-glycoprotein (MDR-1, EC 3.6.3.44), thereby potentially increasing the effectiveness of a wide range of antineoplastic drugs which are inactivated by MDR-1 mechanisms. Dexverapamil exhibits lower calcium antagonistic activity and toxicity than racemic verapamil. It has a role as an EC 3.6.3.44 (xenobiotic-transporting ATPase) inhibitor. It is a conjugate base of a dexverapamil(1+). It is an enantiomer of a (S)-verapamil.
Dexverapamil is the R-enantiomer of the calcium channel blocker verapamil. Dexverapamil competitively inhibits the multidrug resistance efflux pump P-glycoprotein (MDR-1), thereby potentially increasing the effectiveness of a wide range of antineoplastic drugs which are inactivated by MDR-1 mechanisms. This agent exhibits decreased calcium antagonistic activity and toxicity compared to racemic verapamil. (NCI04)
A calcium channel blocker that is a class IV anti-arrhythmia agent.
See also: Verapamil (annotation moved to).
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C26H36N2O4
Molecular Weight
454.611g/mol
Exact Mass
454.283
Elemental Analysis
C, 70.88; H, 8.24; N, 6.36; O, 14.53
CAS #
38321-02-7
Related CAS #
Verapamil;52-53-9;Verapamil-d3 hydrochloride;Verapamil-d6 hydrochloride;1185032-80-7;Verapamil-d3-1 hydrochloride;2714485-49-9
PubChem CID
65808
Appearance
White to off-white solid powder
Melting Point
129-131ºC
Index of Refraction
1.529
LogP
5.093
Hydrogen Bond Donor Count
0
Hydrogen Bond Acceptor Count
6
Rotatable Bond Count
13
Heavy Atom Count
33
Complexity
606
Defined Atom Stereocenter Count
1
SMILES
CC(C)[C@@](CCCN(C)CCC1=CC(=C(C=C1)OC)OC)(C#N)C2=CC(=C(C=C2)OC)OC
InChi Key
FTZCBMKQDCJEKJ-UHFFFAOYSA-N
InChi Code
InChI=1S/C26H36N2O4/c1-7-26(19-27,21-12-13-22(29-3)24(18-21)31-5)15-9-16-28(2)17-14-20-10-8-11-23(30-4)25(20)32-6/h8,10-13,18H,7,9,14-17H2,1-6H3
Chemical Name
(+)-3-(3,4-Dimethoxyphenyl)-6-((5,6-dimethoxyphenethyl)methylamino)hexane-3-carbonitrile
Synonyms
Dexverapamil; Dexverapamilum; EINECS 253-878-4
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 : ≥ 10 mg/mL
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.)
Calculator

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

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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)
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  • 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:
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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.

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  • 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.

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