Small molecules & peptides

Norbinaltorphimine dihydrochloride

NorBNI; N-Desmethylbinaltorphimine; N-Demethylbinaltorphimine dihydrochloride

CA index name: 4,8:11,15-Dimethano-20H-bisbenzofuro[2,3-a:3',2'-i]dipyrido[4,3-b:3',4'-h]carbazole-1,8a,10a,18-tetrol, 7,12-bis(cyclopropylmethyl)-5,6,7,8,9,10,11,12,13,14,19a,20b-dodecahydro-, hydrochloride (1:2), (4bS,8R,8aS,10aS,11R,14aS,19aR,20bR)-


Research Chemical


Molar mass 734.71

CAS RN [113158-34-2]

Purity ≥ 95 %

  • Tan solid


CoA: appearance, ¹H NMR spectrum


Portoghese P.S. et al. Binaltorphimine and nor-binaltorphimine, potent and selective kappa-opioid receptor antagonists. Life Sci. 1987, 40, 1287–1292.

Takemori A.E. et al. Nor-binaltorphimine, a highly selective kappa-opioid antagonist in analgesic and receptor binding assays. J. Pharmacol. Exp. Ther. 1988, 246, 255–258.

Lambert P.D. et al. The effect of central blockade of κ-opioid receptors on neuropeptide Y-induced feeding in the rat. Brain Res. 1993, 629, 146–148.

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