• 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

  • C8069

    Curcumin

    Diarylheptanoid found in Zingiberaceae.

    ≥97% curcuminoid content
  • T0077

    Transactivator of Transcription Peptide (2-4)

    Peptide, contains two cell-penetrating sequence...

    ≥95%
  • T1675

    Teriparatide Acetate

    Synthetic peptide hormone, PTH analog; PTH1R ag...

    ≥95%
  • D1694

    Dexamethasone Acetate Monohydrate

    Steroid; glucocorticoid agonist.

    ≥98%
  • S8007

    Substance P (1-7)

    Endogenous tachykinin peptide, involved in infl...

    ≥95%
  • C2800

    Chalcone

    Enone.

    ≥97%
  • R1776

    Resveratrol

    Phenolic phytoalexin found in soy, grapes, and ...

    ≥98%
  • A2048

    Aflatoxin G1

    Mycotoxin produced by species of Aspergillus; D...

    ≥98%
  • T7133

    Trimetazidine

    Long-chain 3-ketoacyl-CoA thiolase inhibitor, p...

    ≥98%
  • P7056

    Procaterol Hydrochloride

    β2-adrenergic agonist.

    ≥98%
  • W9602

    WY-14643

    A peroxisome proliferator-activated receptor ag...

    ≥98%
  • V344766

    Vitexin

    Found in hawthorn.

    ≥98%
  • P2133

    PFI-1

    Acyl-lysine (Kac) mimetic; BRD2/4 inhibitor.

    ≥98%
  • L1869

    Lercanidipine Hydrochloride

    Calcium channel blocker.

    ≥98%
  • C2946

    Chlorambucil

    Nitrogen mustard, DNA alkylator.

    ≥98%
  • G124084

    GDC-0973

    MEK1 inhibitor.

    ≥99%
  • G124080

    GDC-0994

    ERK1/2 inhibitor.

    ≥98%
  • H9615

    17α-Hydroxyprogesterone Caproate

    Synthetic steroid hormone; ER antagonist.

    ≥98%
  • M1644

    Meloxicam

    NSAID; COX-2 inhibitor.

    ≥98%
  • V3253

    Vinblastine Sulfate

    Vinca alkaloid found in Catharanthus; microtubu...

    ≥96%

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