hh Fenobam (CAS 57653-26-6): R&D Systems
Catalog Number: 2386
Chemical Name: N-(3-Chlorophenyl)-N'-(4,5-dihydro-1-methyl-4-oxo-1H-imidazol-2-yl)urea
Biological Activity
Potent and selective non-competitive mGlu5 antagonist that displays inverse agonist properties; blocks mGlu5 constitutive activity in vitro (IC50 = 87 nM). Acts at an allosteric modulatory site shared with MPEP and binds the mGlu5 receptor with Kd values of 54 and 31 nM for rat and human receptors respectively. Displays anxiolytic activity following oral administration in vivo; also exhibits analgesic properties.
Technical Data
  • M.Wt:
    266.69
  • Formula:
    C11H11N4O2Cl
  • Solubility:
    Soluble to 100 mM in DMSO
  • Purity:
    >99%
  • Storage:
    Store at RT
  • CAS No:
    57653-26-6
The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis. All Tocris products are intended for laboratory research use only.
Background References
  1. Fenobam: a clinically validated nonbenzodiazepine anxiolytic is a potent, selective, and noncompetitive mGlu5 receptor antagonist with inverse agonist activity.
    Porter et al.
    J.Pharmacol.Exp.Ther., 2005;315:711
  2. The metabotropic glutamate receptor subtype 5 antagonist fenobam is analgesic and has improved in vivo selectivity compared with the prototypical antagonist 2-methyl-6-(phenylethynyl)-pyridine.
    Montana et al.
    J.Pharmacol.Exp.Ther., 2009;330:834
  3. Description of a clinically validated anxiolytic with mGlu5 antagonist properties.
    Porter et al.
    Neuropharmacology, 2005;49:267

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