Verapamil HCl

    WARNING: This product is for research use only, not for human or veterinary use.

MedKoo CAT#: 318977

CAS#: 152-11-4

Description: Verapamil is an L-type calcium channel blocker of the phenylalkylamine class. It has been used in the treatment of hypertension, angina pectoris, cardiac arrhythmia, and most recently, cluster headaches. It is also an effective preventive medication for migraine. Verapamil has also been used as a vasodilator during cryopreservation of blood vessels. It is a class-IV antiarrhythmic, more effective than digoxin in controlling ventricular rate[4] and was approved by the U.S. Food and Drug Administration (FDA) in March 1982.

Chemical Structure

Verapamil HCl
CAS# 152-11-4

Theoretical Analysis

MedKoo Cat#: 318977
Name: Verapamil HCl
CAS#: 152-11-4
Chemical Formula: C27H39ClN2O4
Exact Mass:
Molecular Weight: 491.069
Elemental Analysis: C, 66.04; H, 8.01; Cl, 7.22; N, 5.70; O, 13.03

Price and Availability

Size Price Availability Quantity
1.0g USD 90.0 2 Weeks
2.0g USD 150.0 2 Weeks
5.0g USD 250.0 2 Weeks
10.0g USD 350.0 2 Weeks
20.0g USD 550.0 2 Weeks
50.0g USD 850.0 2 Weeks
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Related CAS #: 152-11-4 (HCl)   52-53-9 (free)   38321-02-7 (dexverapamil)  

Synonym: Verapamil HCl, Calan, Cordilox, Dexverapamil, Falicard, Finoptin, Hydrochloride, Verapamil, Iproveratril, Isoptin, Isoptine, Izoptin, Lekoptin

IUPAC/Chemical Name: 2-(3,4-dimethoxyphenyl)-5-[2-(3,4-dimethoxyphenyl)ethyl-methylamino]-2-propan-2-ylpentanenitrile hydrochloride


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


Appearance: White to off-white solid powder

Purity: >98% (or refer to the Certificate of Analysis)

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition: Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Solubility: Soluble in DMSO, not in water

Shelf Life: >2 years if stored properly

Drug Formulation: This drug may be formulated in DMSO

Stock Solution Storage: 0 - 4 C for short term (days to weeks), or -20 C for long term (months).

HS Tariff Code: 2934.99.9001

Preparing Stock Solutions

The following data is based on the product molecular weight 491.069 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Recalculate based on batch purity %
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.15 mL 5.76 mL 11.51 mL
5 mM 0.23 mL 1.15 mL 2.3 mL
10 mM 0.12 mL 0.58 mL 1.15 mL
50 mM 0.02 mL 0.12 mL 0.23 mL

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1: Wang L, Cheng Z, Gu Y, Peng D. Short-Term Effects of Verapamil and Diltiazem in the Treatment of No Reflow Phenomenon: A Meta-Analysis of Randomized Controlled Trials. Biomed Res Int. 2015;2015:382086. doi: 10.1155/2015/382086. Epub 2015 Oct 4. Review. PubMed PMID: 26504804; PubMed Central PMCID: PMC4609355.

2: Su Q, Nyi TS, Li L. Adenosine and verapamil for no-reflow during primary percutaneous coronary intervention in people with acute myocardial infarction. Cochrane Database Syst Rev. 2015 May 18;5:CD009503. doi: 10.1002/14651858.CD009503.pub3. Review. PubMed PMID: 25985145.

3: Izdes S, Altintas ND, Soykut C. Acute respiratory distress syndrome after verapamil intoxication: case report and literature review. Acta Clin Belg. 2014 Apr;69(2):116-9. doi: 10.1179/2295333714Y.0000000007. Epub 2014 Mar 4. Review. PubMed PMID: 24724751.

4: Das P, Kuppuswamy PS, Rai A, Bostwick JM. Verapamil for the treatment of clozapine-induced persistent sinus tachycardia in a patient with schizophrenia: a case report and literature review. Psychosomatics. 2014 Mar-Apr;55(2):194-5. doi: 10.1016/j.psym.2013.05.002. Epub 2013 Jun 30. Review. PubMed PMID: 23820380.

5: Lapage MJ, Bradley DJ, Dick M 2nd. Verapamil in infants: an exaggerated fear? Pediatr Cardiol. 2013 Oct;34(7):1532-4. doi: 10.1007/s00246-013-0739-8. Epub 2013 Jun 26. Review. PubMed PMID: 23800976.

6: Su Q, Li L, Liu Y. Short-term effect of verapamil on coronary no-reflow associated with percutaneous coronary intervention in patients with acute coronary syndrome: a systematic review and meta-analysis of randomized controlled trials. Clin Cardiol. 2013 Aug;36(8):E11-6. doi: 10.1002/clc.22143. Epub 2013 Jun 7. Review. PubMed PMID: 23749333.

7: Aung Naing K, Li L, Su Q, Wu T. Adenosine and verapamil for no-reflow during primary percutaneous coronary intervention in people with acute myocardial infarction. Cochrane Database Syst Rev. 2013 Jun 4;6:CD009503. doi: 10.1002/14651858.CD009503.pub2. Review. Update in: Cochrane Database Syst Rev. 2015;5:CD009503. PubMed PMID: 23736949.

8: Feldmann M, Koepp M. P-glycoprotein imaging in temporal lobe epilepsy: in vivo PET experiments with the Pgp substrate [11C]-verapamil. Epilepsia. 2012 Nov;53 Suppl 6:60-3. doi: 10.1111/j.1528-1167.2012.03704.x. Review. PubMed PMID: 23134497.

9: Delaney B, Loy J, Kelly AM. The relative efficacy of adenosine versus verapamil for the treatment of stable paroxysmal supraventricular tachycardia in adults: a meta-analysis. Eur J Emerg Med. 2011 Jun;18(3):148-52. doi: 10.1097/MEJ.0b013e3283400ba2. Review. PubMed PMID: 20926952.

10: Bartels AL, de Klerk OL, Kortekaas R, de Vries JJ, Leenders KL. 11C-verapamil to assess P-gp function in human brain during aging, depression and neurodegenerative disease. Curr Top Med Chem. 2010;10(17):1775-84. Review. PubMed PMID: 20645917.

11: Cohen V, Jellinek SP, Fancher L, Sangwan G, Wakslak M, Marquart E, Farahani C. Tarka® (trandolapril/verapamil hydrochloride extended-release) overdose. J Emerg Med. 2011 Mar;40(3):291-5. doi: 10.1016/j.jemermed.2008.10.015. Epub 2009 Feb 26. Review. PubMed PMID: 19249183.

12: Tfelt-Hansen P, Tfelt-Hansen J. Verapamil for cluster headache. Clinical pharmacology and possible mode of action. Headache. 2009 Jan;49(1):117-25. doi: 10.1111/j.1526-4610.2008.01298.x. Review. PubMed PMID: 19125880.

13: Shahlaie K, Boggan JE, Latchaw RE, Ji C, Muizelaar JP. Posttraumatic vasospasm detected by continuous brain tissue oxygen monitoring: treatment with intraarterial verapamil and balloon angioplasty. Neurocrit Care. 2009;10(1):61-9. doi: 10.1007/s12028-008-9138-z. Epub 2008 Sep 20. Review. PubMed PMID: 18807219.

14: Volkov VE, Babaev FZ, Pshenitsin AI, Zhezheva FM, Mazur NA. [Clinical application of verapamil in patients with supraventricular cardiac rhythm disturbances and arterial hypertension]. Kardiologiia. 2008;48(7):30-4. Review. Russian. PubMed PMID: 18789023.

15: Sharma SK, Ruggenenti P, Remuzzi G. Managing hypertension in diabetic patients--focus on trandolapril/verapamil combination. Vasc Health Risk Manag. 2007;3(4):453-65. Review. PubMed PMID: 17969376; PubMed Central PMCID: PMC2291330.

16: Patel NP, Pugh ME, Goldberg S, Eiger G. Hyperinsulinemic euglycemia therapy for verapamil poisoning: a review. Am J Crit Care. 2007 Sep;16(5):498-503. Review. PubMed PMID: 17724247.

17: García Donaire JA, Ruilope LM. Trandolapril/verapamil combination in hypertensive diabetic patients. Vasc Health Risk Manag. 2007;3(1):77-82. Review. PubMed PMID: 17583177; PubMed Central PMCID: PMC1994049.

18: Batalis NI, Harley RA, Schandl CA. Verapamil toxicity: an unusual case report and review of the literature. Am J Forensic Med Pathol. 2007 Jun;28(2):137-40. Review. PubMed PMID: 17525564.

19: Reynolds NA, Wagstaff AJ, Keam SJ. Trandolapril/verapamil sustained release: a review of its use in the treatment of essential hypertension. Drugs. 2005;65(13):1893-914. Review. PubMed PMID: 16114984.

20: Grossi A, Biscardi M. Reversal of MDR by verapamil analogues. Hematology. 2004 Feb;9(1):47-56. Review. PubMed PMID: 14965868.

Additional Information

Related CAS#
152-11-4 (HCl salt); 52-53-9 (free base).