R&D Systems Inc. Tocris Bioscience Boston Biochem

β-Funaltrexamine hydrochloride

Cat. No. 0926

b-Funaltrexamine hydrochloride C25H30N2O6.HCl [72786-10-8]

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Alternative Name: 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.

Licensing Information

Sold with the permission of the University of Minnesota

Technical Data

Soluble to 20 mM in water with gentle warming and to 100 mM in DMSO
>98 %
Desiccate at -20°C

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.

Certificate of Analysis / Safety Data Sheet

Certificate of Analysis: View current batch
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Safety Data Sheet: View Safety Data Sheet


Takemorei et al (1981) The irreversible narcotic antagonist and reversible agonist properties of the fumarate methyl ester derivative of naltrexone. Eur.J.Pharmacol. 70 445. PMID: 6263637.

Jiang et al (1990) μ Antagonist and κ agonist properties of β-funaltrexamine (β-FNA) in vivo: long lasting spinal analgesia in mice. J.Pharmacol.Exp.Ther. 252 1006. PMID: 2156986.

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