Proxyfan oxalateCAS: 177708-09-7
MF: C13H16N2O•C2H2O4
MW: 306.32
A high affinity histamine H3 receptor ligand.

Proxyfan oxalate (CAS 177708-09-7)

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Synonym: 4-[3-(Phenylmethoxy)propyl]-1H-imidazole oxalate
Application: A high affinity histamine H3 receptor ligand
CAS Number: 177708-09-7
Purity: ≥98%
Molecular Weight: 306.32
Molecular Formula: C13H16N2O•C2H2O4
* Refer to Certificate of Analysis for lot specific data (including water content).
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Proxyfan oxalate is a high affinity histamine H3 receptor ligand (pKi = 8.62) that acts as a protean (shape changing) agonist at recombinant and native receptors. This compound's functional activity ranges from full agonist to inverse agonist depending on the system used. Proxyfan oxalate displays partial agonist effects on cAMP inhibition and MAPK activity, neutral antagonist activity on histamine release and partial inverse agonism of [3H]-arachidonic acid release.


Gbahou et al (2003) Protean agonism at histamine H3 receptors in vitro and in vivo. Proc.Natl.Acad.Sci.USA 100 11086. Baldi et al (2005) The H3 receptor protean agonist proxyfan enhances the expression of fear memory in the rat. Neuropharmacology 48 246. Krueger et al (2005) G protein-dependent pharmacology of histamine H3 receptor ligands: evidence for heterogeneous active state receptor conformations. J.Pharmacol.Exp.Ther 314 271.

Physical State :
Solubility :
Soluble in water (100 mM), and DMSO (100 mM).
Storage :
Desiccate at room temperature
pK Values :
pKb: 7.4 (Predicted)
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
PubChem CID :

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Certificate of Analysis

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