Catalog Number: 4185
Alternate Names: PNU 101387, U 101387
Chemical Name: 4-[4-[2-[(1S)-3,4-Dihydro-1H-2-benzopyran-1-yl)ethyl]-1-piperazinyl]-benzenesulfonamide
Biological Activity
Selective, high affinity antagonist for the rat and human dopamine D4 receptor (Ki = 10 nM). Exhibits low affinity at other monoamine receptors (Ki > 2000 nM). Induces c-fos gene expression in medial prefrontal cortex in a similar manner to clozapine (Cat. No. 0444). Brain penetrant and orally available.
Technical Data
  • M.Wt:
  • Formula:
  • Solubility:
    Soluble to 100 mM in DMSO
  • Purity:
  • Storage:
    Store at +4°C
  • CAS No:
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.
Additional Information
Licensing Caveats:
Sold for research purposes under agreement from Pfizer Inc.
Background References
  1. Pharmacological characterization of U-101387, a dopamine D4 receptor selective antagonist.
    Merchant et al.
    J.Pharm.Exp.Ther., 1996;279:1392
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