Catalog Number: 0926
Alternate Names: β-FNA
Chemical Name: (E)-4-[[5α,6β)-17-Cyclopropylmethyl)-4,5-epoxy-3,14-dihydroxymorphinan-6-yl]amino]-4-oxo-2-butenoicacid methyl ester hydrochloride
Biological Activity
Selective μ opioid receptor antagonist.
Technical Data
  • M.Wt:
  • Formula:
  • Solubility:
    Soluble to 20 mM in water with gentle warming and to 100 mM in DMSO
  • Purity:
  • Storage:
    Desiccate at -20°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 with the permission of the University of Minnesota
Background References
  1. μ Antagonist and κ agonist properties of β-funaltrexamine (β-FNA) in vivo: long lasting spinal analgesia in mice.
    Jiang et al.
    J.Pharmacol.Exp.Ther., 1990;252:1006
  2. The irreversible narcotic antagonist and reversible agonist properties of the fumarate methyl ester derivative of naltrexone.
    Takemorei et al.
    Eur.J.Pharmacol., 1981;70:445
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