• 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
Awaiting product image

Phentolamine Hydrochloride

Product ID P2817
Cas No. 73-05-2
Purity ≥98%
Product Unit SizeCostQuantityStock
50 mg $60.70 In stock
100 mg $90.70 In stock
500 mg $350.40 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. TEST!!!!!!

Product Info

Cas No.

73-05-2

Purity

≥98%

Formula

C17H19N3O • HCl

Formula Wt.

317.81

Chemical Name

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

IUPAC Name

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

Melting Point

239-240°C

Solubility

Soluble in water (1g/50mL) and alcohol (1g/70mL). Slightly soluble in chloroform. Practically insoluble in acetone and ethyl acetate.

Appearance

Brown Crystalline Powder

Shipping and Storage

Store Temp

Ambient

Ship Temp

Ambient

Downloads

MSDS

P2817 MSDS PDF

Info Sheet

P2817 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

  • D0025

    DAMGO

    Synthetic peptice; μOR agonist.

    ≥95%
  • L1817

    Leflunomide

    AhR agonist, dihydroorotate dehydrogenase inhib...

    ≥98%
  • A5045

    Amlodipine

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

    ≥98%
  • A480010

    AM630

    CB2 receptor antagonist.

    ≥97%
  • A0960

    Adrenocorticotropic Hormone (1-39), human

    Endogenous peptide hormone, involved in stress ...

    ≥95%
  • D1629

    Dehydroepiandrosterone

    Endogenous steroid hormone; ERβ, NMDA, σ1 ago...

    ≥98%
  • A480020

    (R,S)-AM 1241

    Cannabinoid receptor 2 selective agonist.

    ≥96%
  • I6068

    Ipriflavone

    Synthetic isoflavone.

    ≥98%
  • D5897

    Doxycycline Hyclate

    Tetracycline; protein translation inhibitor, MM...

    ≥97%
  • A0776

    ABT-199

    BH3 mimetic; Bcl-2 inhibitor.

    ≥98%
  • C3263

    Ciprofloxacin Hydrochloride Monohydrate

    Fluoroquinolone; topoisomerase IV and bacterial...

    ≥98%
  • E5241

    Met-Enkephalin

    Endogenous opioid peptide; δOR and μOR agonis...

    ≥95%
  • G1652

    Genistein

    Phytoestrogen, isoflavone found in various plan...

    ≥98%
  • E2258

    Efonidipine Hydrochloride

    Calcium channel blocker.

    ≥98%
  • V0244

    Valganciclovir Hydrochloride

    Nucleoside (deoxyguanosine) analog, ganciclovir...

    ≥98%
  • G1869

    Geranylgeraniol

    Diterpene alcohol, geranylgeranyl pyrophosphate...

    ≥95%
  • D582703

    Dorsomorphin

    Inhibitor of ALK2, ALK3, ALK6, and AMPK.

    ≥98%
  • O4102

    Okadaic Acid Ammonium

    Shellfish toxin produced by dinoflagellates and...

    ≥98%
  • G0181

    Gastrin Releasing Peptide, human

    Endogenous bombesin-like peptide, involved in f...

    ≥95%
  • G1308

    GDC-0032

    PI3K inhibitor.

    ≥98%

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

©2026 LKT Laboratories, All Rights Reserved - Products for research use only