Ifenprodil Tartrate

Catalog No.S4091

For research use only.

Ifenprodil is an atypical noncompetitive antagonist at the NMDA receptor, it interacts with high affinity at a homogeneous population of NMDA receptors in neonatal rat forebrain with IC50 of 0.3 μM.

Ifenprodil Tartrate Chemical Structure

CAS No. 23210-58-4

Selleck's Ifenprodil Tartrate has been cited by 3 Publications

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Biological Activity

Description Ifenprodil is an atypical noncompetitive antagonist at the NMDA receptor, it interacts with high affinity at a homogeneous population of NMDA receptors in neonatal rat forebrain with IC50 of 0.3 μM.
Targets
NMDA Receptor [1]
0.3 μM
In vitro

Ifenprodil inhibits NMDA-induced currents at NR1A/NR2B and NR1A/NR2A receptors with IC50 of 0.34 μM and 146 μM in oocytes voltage-clamped at -70 mV. Ifenprodil may act as a weak open-channel blocker of NR1A/NR2A receptors, the degree of inhibition seen with 100 μM Ifenprodil at NR1A/NR2A receptors is not altered by changes in the concentration of extracellular glycine. The inhibitory effect of 1 mM Ifenprodil at NR1A/NR2B receptors is reduced by increasing the concentration of glycine. [1] Ifenprodil (10 μM) inhibits virtually all of the NMDA receptor-evoked current in very young rat cortical neurons that contain a single population of receptors exhibiting a high affinity for glycine. Ifenprodil (10 μM) inhibits both the high-affinity population and a significant proportion of the low-affinity component in older rat cortical neurons, thus revealing three pharmacologically distinct populations of NMDA receptors in single neurons. [2] Ifenprodil antagonizes NMDA receptors in an activity-dependent manner, whilst also increasing the receptor affinity for glutamate recognition-site agonists. Ifenprodil inhibition curves against 10 μM and 100 μM NMDA-evoked currents yielded IC50 values of 0.88 μM and 0.17 μM, respectively. Ifenprodil (3 μM) potentiates to approximately 200% of control levels in rat cultured cortical neurones. Ifenprodil exhibits a 39- and 50-fold higher affinity for the agonist-bound activated and desensitized states of the NMDA receptor, respectively, relative to the resting, agonist-unbound state. Ifenprodil binding to the NMDA receptor results in a 6-fold higher affinity for glutamate site agonists. [3]

Protocol (from reference)

Solubility (25°C)

In vitro

DMSO 95 mg/mL
(118.6 mM)
Ethanol 62 mg/mL
(77.4 mM)
Water 9 mg/mL
(11.23 mM)

* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.

Chemical Information

Molecular Weight 800.98
Formula

2(C21H27NO2).C4H6O6

CAS No. 23210-58-4
Storage 3 years -20°C powder
2 years -80°C in solvent
Smiles CC(C(C1=CC=C(C=C1)O)O)N2CCC(CC2)CC3=CC=CC=C3.CC(C(C1=CC=C(C=C1)O)O)N2CCC(CC2)CC3=CC=CC=C3.C(C(C(=O)O)O)(C(=O)O)O

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Method for preparing DMSO master liquid: mg drug pre-dissolved in μL DMSO ( Master liquid concentration mg/mL, Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug. )

Method for preparing in vivo formulation: Take μL DMSO master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O, mix and clarify.

Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.

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Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.

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