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Catalog No.
PDE10A inhibitor,potent and selective
Grouped product items
SizePriceStock Qty
10mM (in 1mL DMSO)
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In stock
In stock
In stock
In stock

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PF-2545920 is an inhibitor of phosphodiesterase 10A (PDE10A) with IC50 value of 0.37nM [1].

PDE10A is highly expressed in the medium spiny neurons of the striatum and regulates both cGMP and cAMP. The PDE10A inhibitors are believed to regulate cyclic nucleotide signaling in the cortices-triatothalamic circuit. Previous inhibitors of PDE have potential therapeutic utility but also have potential safety risks due to off-target PDE inhibition. Thereby PF-2545920 is developed as a more selective inhibitor. PF-2545920 is shown to be efficacious both in vitro and in vivo with improved penetration in CNS. It has excellent in vivo efficacy in neurochemical elevation of cyclic nucleotides and in models predictive of antipsychotic activity. Administration of PF-2545920 to mice can cause increase in striatal cGMP with the minimal effective dose at about 1mg/kg [1].

[1] Verhoest PR, Chapin DS, Corman M, Fonseca K, Harms JF, Hou X, Marr ES, Menniti FS, Nelson F, O'Connor R, Pandit J, Proulx-Lafrance C, Schmidt AW, Schmidt CJ, Suiciak JA, Liras S. Discovery of a novel class of phosphodiesterase 10A inhibitors and identification of clinical candidate 2-[4-(1-methyl-4-pyridin-4-yl-1H-pyrazol-3-yl)-phenoxymethyl]-quinoline (PF-2545920) for the treatment of schizophrenia. J Med Chem. 2009 Aug 27;52(16):5188-96.

Chemical Properties

Physical AppearanceA solid
StorageStore at -20°C
Cas No.1292799-56-4
Solubilityinsoluble in H2O; ≥19.35 mg/mL in DMSO; ≥99.8 mg/mL in EtOH
Chemical Name2-[[4-(1-methyl-4-pyridin-4-ylpyrazol-3-yl)phenoxy]methyl]quinoline
SDFDownload SDF
Canonical SMILESCN1C=C(C(=N1)C2=CC=C(C=C2)OCC3=NC4=CC=CC=C4C=C3)C5=CC=NC=C5
Shipping ConditionEvaluation sample solution: ship with blue ice. All other available sizes: ship with RT, or blue ice upon request.
General tipsFor obtaining a higher solubility, please warm the tube at 37°C and shake it in the ultrasonic bath for a while. Stock solution can be stored below -20°C for several months.


Cell experiment [1]:

Cell lines

Rat striatal cells

Preparation method

The solubility of this compound in DMSO is >19.35 mg/ml. General tips for obtaining a higher concentration: Please warm the tube at 37℃ for 10 minutes and/or shake it in the ultrasonic bath for a while. Stock solution can be stored below -20℃ for several months.

Reacting condition

1 μM for 30 min at 30°C


Biochemical characterization of PF-2545920 showed that it could modulate both the dopamine D1-direct and D2-indirect striatal pathways and regulate the phosphorylation status of a panel of glutamate receptor subunits in the striatum. It was striking that PDE10A inhibition increased the phosphorylation of the (+/-)-alpha-amino-3-hydroxy-5-methylisoxazole-4-proprionic acid receptor GluR1 subunit at residue serine 845 at the cell surface.

Animal experiment [1]:

Animal models

Male CF-1 mice or Sprague-Dawley rats

Dosage form

1-30 mg/kg, i.p.


PF-2545920 was active in a range of antipsychotic models, antagonizing apomorphine-induced climbing in mice, inhibiting conditioned avoidance responding in both rats and mice, and blocking N-methyl-D-aspartate antagonist-induced deficits in prepulse inhibition of acoustic startle response in rats, while improving baseline sensory gating in mice, all of which strengthen previously reported observations.

Other notes

Please test the solubility of all compounds indoor, and the actual solubility may slightly differ with the theoretical value. This is caused by an experimental system error and it is normal.


[1] Grauer SM, et al. Phosphodiesterase 10A inhibitor activity in preclinical models of the positive, cognitive, and negative symptoms of schizophrenia. J Pharmacol Exp Ther, 2009, 331(2), 574-590.

Biological Activity

Description PF-2545920 is a potent and selective inhibitor of phosphodiesterase 10A (PDE10A) with IC50 value of 0.37 nM.
Targets PDE10A          
IC50 0.37 nM          

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