Highly potent κ opioid receptor antagonist (Ki = 0.18 nM for human cloned κ receptors expressed in CHO cells). Displays 208- and 799-fold selectivity over μ and δ receptors respectively. Reduces feeding behavior in rats with a much higher potency (300-30,000-fold) and a shorter duration of action than nor-binaltorphimine (Cat.No. 0347).
|Storage||Desiccate at -20°C|
The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.
Tocris products are intended for laboratory research use only, unless stated otherwise.
|Solvent||Max Conc. mg/mL||Max Conc. mM|
Preparing Stock Solutions
The following data is based on the product molecular weight 544.48. Batch specific molecular weights may vary from batch to batch due to solvent of hydration, which will affect the solvent volumes required to prepare stock solutions.
|Concentration / Solvent Volume / Mass||1 mg||5 mg||10 mg|
|1 mM||1.84 mL||9.18 mL||18.37 mL|
|5 mM||0.37 mL||1.84 mL||3.67 mL|
|10 mM||0.18 mL||0.92 mL||1.84 mL|
|50 mM||0.04 mL||0.18 mL||0.37 mL|
References are publications that support the biological activity of the product.
Jewett et al (2001) The kappa-opioid antagonist GNTI reduces U50,488-, DAMGO-, and deprivation-induced feeding, but not butorphanol- and neuropeptide Y-induced feeding in rats. Brain Res. 909 75 PMID: 11478923
Jones et al (1998) Mutational evidence for a common κ antagonist binding pocket in the wild type κ and mutant μ[K303E] opioid receptors. J.Med.Chem. 41 4911 PMID: 9836606
Jones and Portoghese (2000) 5'-Guanidinonaltrindole, a highly selective and potent κ-opioid receptor antagonist. Eur.J.Pharmacol. 396 49 PMID: 10822054
If you know of a relevant reference for GNTI dihydrochloride, please let us know.
View Related Products by Product Action
Keywords: GNTI dihydrochloride, GNTI dihydrochloride supplier, Potent, selective, κ-opioid, kappa-opioid, antagonists, KOP, Receptors, OP2, Kappa, Opioid, 1282, Tocris Bioscience
1 Citation for GNTI dihydrochloride
Citations are publications that use Tocris products. Selected citations for GNTI dihydrochloride include:
Choi et al (2010) Roles of opioid receptor subtype in the spinal antinociception of selective cyclooxygenase 2 inhibitor. Korean J Pain 23 236 PMID: 21217886
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Literature in this Area
Tocris offers the following scientific literature in this area to showcase our products. We invite you to request* or download your copy today!
*Please note that Tocris will only send literature to established scientific business / institute addresses.
Peptides Involved in Appetite Modulation Scientific Review
Written by Sonia Tucci, Lynsay Kobelis and Tim Kirkham, this review provides a synopsis of the increasing number of peptides that have been implicated in appetite regulation and energy homeostasis; putative roles of the major peptides are outlined and compounds available from Tocris are listed.
The key feature of drug addiction is the inability to stop using a drug despite clear evidence of harm. This poster describes the brain circuits associated with addiction, and provides an overview of the main classes of addictive drugs and the neurotransmitter systems that they target.
Peripheral sensitization is the reduction in the threshold of excitability of sensory neurons that results in an augmented response to a given external stimulus. This poster outlines the excitatory and inhibitory signaling pathways involved in modulation of peripheral sensitization. The role of ion channels, GPCRs, neurotrophins, and cytokines in sensory neurons are also described.