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Ifenprodil

Ifenprodil (NP-120), a cerebral vasodilator, is a noncompetitive NMDA receptor antagonist. Ifenprodil exerts high affinity at NR1A/NR2B receptors (IC50=0.34 μM) over 400-fold than at NR1A/NR2A receptors (IC50=146 μM) [1]. Ifenprodil is an α1 adrenergic receptor antagonist. Ifenprodil inhibits GIRK (Kir3), reduces inward currents through the basal GIRK activity. Ifenprodil has reliable inhibitory effects against A/H1N1 strains (EC50 of 6.6 µM) . Ifenprodil has neuroprotective, anticonvulsant and antinociceptive effects. Ifenprodil can be used for the study of cerebrovascular diseases and peripheral arterial obliterative disease[2][4].

Product Specifications

CAS Number

23210-56-2

Product Name Alternative

NP-120; RC-61-91

UNSPSC

12352005

Hazard Statement

H302, H312, H332

Target

Adrenergic Receptor; Calcium Channel; iGluR; Influenza Virus; Potassium Channel

Type

Reference compound

Related Pathways

Anti-infection; GPCR/G Protein; Membrane Transporter/Ion Channel; Neuronal Signaling

Applications

Neuroscience-Neuromodulation

Field of Research

Infection; Neurological Disease

Assay Protocol

https://www.medchemexpress.com/ifenprodil.html

Purity

99.94

Solubility

DMSO : 12.5 mg/mL (ultrasonic; warming; heat to 60°C)

Smiles

OC(C1=CC=C(O)C=C1)C(C)N(CC2)CCC2CC3=CC=CC=C3

Molecular Formula

C21H27NO2

Molecular Weight

325.44

Precautions

H302, H312, H332

References & Citations

[1]Williams K, et al. Ifenprodil discriminates subtypes of the N-methyl-D-aspartate receptor: selectivity and mechanisms at recombinant heteromeric receptors. Mol Pharmacol. 1993 Oct;44 (4) :851-9.|[2]Kobayashi T, et al. Inhibition of G protein-activated inwardly rectifying K+ channels by ifenprodil. Neuropsychopharmacology. 2006 Mar;31 (3) :516-24.|[3]Chen YW, et al. Ifenprodil for prolonged spinal blockades of motor function and nociception in rats. Pharmacol Rep. 2016 Apr;68 (2) :357-62.|[4]Jang Y, et al. In Vitro and In Vivo Antiviral Activity of Nylidrin by Targeting the Hemagglutinin 2-Mediated Membrane Fusion of Influenza A Virus. Viruses. 2020 May 25;12 (5) :581.

Shipping Conditions

Room Temperature

Storage Conditions

4°C (Powder, sealed storage, away from moisture)

Scientific Category

Reference compound1

Clinical Information

Launched

Citation 01

Chemosphere. 2019 Aug:229:618-630.|Heliyon. 2023 May 29;9 (6) :e16631.|Life Sci. 2022 Apr 15:295:120419.|Neurosci Bull. 2020 Feb;36 (2) :153-164.|Antimicrob Agents Chemother. 2024 Nov 6;68 (11) :e0103524.|Cell Rep. 2025 May 14;44 (5) :115712.|Chemosphere. 2019 Aug:229:618-630.|Eur J Pharmacol. 2023 Dec 15:961:176174.|Eur J Pharmacol. 2024 Jul 25:176860.|Exp Brain Res. 2023 Dec;241 (11-12) :2735-2750.|Pharmaceuticals (Basel) . 2024 Sep 19;17 (9) :1234.

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