• Skip to primary navigation
  • Skip to main content
  • Skip to footer

LKT Labs

Biochemicals for Life Science Research

  • Products
    • New Products
    • Cancer Biology
    • Cardiovascular
    • Endocrine Signaling and Immunology
    • Metabolic and GI Pathology
    • Microbiology
    • Natural Products
    • Neuroscience
    • Peptides
    • Pharmaceutical Impurities and Derivatives
    • Stem Cell Modulators
  • Services
    • Custom Synthesis
    • Natural Product Isolation
    • Analytical Services
  • Int’l Distributors
  • Support
    • About LKT Labs
    • General Inquiry
    • Bulk Quote Request
    • Document Request
    • Technical Support
    • Catalog Request
    • Product Flyers
  • Contact Us
  • Cart
  • Login / Register
Phentolamine Methanesulfonate

Phentolamine Methanesulfonate

Product ID P2818
Cas No. 65-28-1
Purity ≥98%
Product Unit SizeCostQuantityStock
50 mg $61.10 In stock
100 mg $102.00 In stock
500 mg $306.20 In stock
Bulk Quote

Quicklinks

  • Description
  • Product Info
  • Shipping and Storage
  • Downloads
  • References
  • Description
  • Product Info
  • Shipping and Storage
  • Downloads
  • References
  • Custom Order

Description

Phentolamine is a nonselective α-adrenergic receptor antagonist that exhibits vasodilatory and antihypertensive activities. Phentolamine is occasionally used to treat erectile dysfunction. In vivo, phentolamine inhibits fructose-induced increases in blood pressure and activates ATP-sensitive K+ channels, altering Ca2+ signaling.

Product Info

Cas No.

65-28-1

Purity

≥98%

Formula

C17H19N3O • CH3SO3H

Formula Wt.

377.46

Chemical Name

3-[[(4,5-Dihydro-1H-imidazol-2-yl)methyl](4-methyl- phenyl)amino]phenol methanesulfonate

IUPAC Name

3-[N-(4, 5-dihydro-1H-imidazol-2-ylmethyl)-4-methylanilino]phenol;methanesulfonic acid

Synonym

Phentolamine mesylate, Regitine, Rogitine

Melting Point

177-181°C

Solubility

Soluble in water, alcohol and chloroform.

Appearance

White Crystal Powder

Shipping and Storage

Store Temp

Ambient

Ship Temp

Ambient

Downloads

MSDS

P2818 MSDS PDF

Info Sheet

P2818 Info Sheet PDF

References

Zhou K, Kumar U, Yuen VG, et al. The effects of phentolamine on fructose-fed rats. Can J Physiol Pharmacol. 2012 Aug;90(8):1075-85. PMID: 22783820.

Ahn SW, Kim SH, Kim JH, et al. Phentolamine inhibits the pacemaker activity of mouse interstitial cells of Cajal by activating ATP-sensitive K+ channels. Arch Pharm Res. 2010 Mar;33(3):479-89. PMID: 20361315.

Dinsmore WW, Wyllie MG. Vasoactive intestinal polypeptide/phentolamine for intracavernosal injection in erectile dysfunction. BJU Int. 2008 Sep;102(8):933-7. PMID: 18485029.

Custom Order

  • Size of single unit expressed as number (e.g. '500' in the case of 500 mg)
  • Total quantity of unit size desired (e.g. '10' in the case of 10 x 500 mg). If only one unit is desired, you may leave this blank.
  • This field is for validation purposes and should be left unchanged.

Related Products

  • B8676

    BVT-2733

    11β-HSD1 inhibitor.

    ≥98%
  • D5746

    Dolasetron

    5-HT3 antagonist.

    ≥98%
  • I4962

    Isoimperatorin

    Furocoumarin; COX-2 inhibitor.

    ≥98%
  • S0072

    5S rRNA modificator

    Electrophile used in 2’-hydroxyl acylation of...

    ≥98%
  • O9397

    Oxytetracycline Hydrochloride

    Tetracycline; protein translation inhibitor.

    ≥95%
  • M400220

    MK-2206 Dihydrochloride

    Akt inhibitor.

    ≥99%
  • P3018

    Phellodendrine

    Quaternary base alkaloid found in Phellodendron...

    ≥98%
  • S3353

    Sinomenine Hydrochloride

    Alkaloid found in Sinomenium; acid-sensing ion ...

    ≥98%
  • D0261

    Dapivirine

    RT inhibitor.

    ≥98%
  • T3196

    Thymoquinone

    Phytochemical from Nigella sativa.

    ≥98%
  • O610292

    Ophiobolin B

    Naturally occurring sesteterpenoid.

    ≥98%
  • T2668

    TGR5 Receptor Agonist

    TGR5 agonist.

    ≥99%
  • N5767

    Norethindrone

    Steroid hormone, contraceptive; PR agonist.

    ≥98%
  • U6801

    Urapidil

    5-HT1A agonist, α1-adrenergic antagonist.

    ≥98%
  • G3455

    Ginsenoside Rc

    Triterpene saponin found in species of Panax; A...

    ≥98%
  • T0250

    Tamoxifen Citrate

    4-Hydroxytamoxifen prodrug; FIASMA, SERM, PKC i...

    ≥98%
  • A1332

    Adipokinetic Hormone II from Locusta migratoria

    Neuropeptide found in Locusta migratoria.

    ≥98%
  • A5044

    Amlodipine Besylate

    Dihydropyridine, FIASMA; L-type Ca2+ channel bl...

    ≥98%
  • C0044

    CAL101

    p110δ PI3K inhibitor.

    ≥99%
  • B9700

    BYL719

    p110α PI3K inhibitor.

    ≥99%, ≥99%ee

Footer

  • Contact Us
  • About Us
  • Site Map
  • Terms and Conditions
LKT Laboratories, Inc.
545 Phalen Blvd.
St. Paul MN, 55130

Ph: (888)-558-5227
Fax: (888)-558-7329

©2025 LKT Laboratories, All Rights Reserved - Products for research use only