Catalog Number: 1995
Chemical Name: 5,6-Dihydro-5-methyl-6-oxo-4H-imidazo[1,5-a]thieno[2,3-f][1,4]diazepine-3-carboxylic acid 1,1-dimethylethyl ester
Biological Activity
Benzodiazepine inverse agonist. Binds with high affinity to both diazepam-sensitive (DS) and diazepam-insensitive (DI) GABAA receptors (Ki values are ~ 0.2 and ~ 2.6 nM for DS and DI receptors respectively). Antagonizes effects of ethanol on locomotor behavior and suppresses ethanol intake in alcohol-preferring rats.
Technical Data
  • M.Wt:
    319.38
  • Formula:
    C15H17N3O3S
  • Solubility:
    Soluble to 100 mM in ethanol and to 100 mM in DMSO
  • Purity:
    >99%
  • Storage:
    Store at RT
  • CAS No:
    99632-94-7
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. High affinity ligands for 'diazepam-insensitive' benzodiazepine receptors.
    Wong and Skolnick
    Eur.J.Pharmacol., 1992;225:63
  2. Effects of the benzodiazepine inverse agonist RO19-4603 on the maintenance of tolerance to a single dose of ethanol.
    June et al.
    J.Pharmacol.Exp.Ther., 1995;274:1105
  3. The novel benzodiazepine inverse agonist RO19-4603 antagonises ethanol motivated behaviours: neuropharmacological studies.
    June et al.
    Brain Res., 1998;784:256

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