Dihexa

PEPTIDES

Dihexa (N-hexanoic-Tyr-Ile-(6)-aminohexanoic amide) is a synthetic small molecule derived from angiotensin IV that activates the hepatocyte growth factor (HGF)/c-Met receptor system.

⚠️ For Research Use Only — This product is not intended for human consumption. By purchasing, you confirm you are a qualified researcher.

Dihexa Research Peptide Overview

Dihexa (N-hexanoic-Tyr-Ile-(6)-aminohexanoic amide) is a synthetic small molecule derived from angiotensin IV that activates the hepatocyte growth factor (HGF)/c-Met receptor system. This research compound promotes dendritic spine formation and synaptic connectivity through c-Met signaling. Dihexa is studied in preclinical models of synaptic plasticity, neurotrophic signaling, and cognitive function.

What Is Dihexa?

Dihexa was developed by researchers at Washington State University through structure-activity optimization of angiotensin IV-derived compounds. While angiotensin IV was known to enhance cognitive function through AT4 receptor (IRAP) binding, dihexa was found to act through a distinct mechanism: potentiation of the HGF/c-Met receptor system. HGF is a pleiotropic growth factor that promotes neuronal survival, synaptogenesis, and dendritic spine formation through c-Met receptor tyrosine kinase activation. Published research has demonstrated that dihexa enhances HGF/c-Met signaling at subthreshold concentrations, amplifying synaptogenic and neurotrophic effects without directly binding c-Met (Benoist et al., Journal of Pharmacology and Experimental Therapeutics, 2014). The compound’s mechanism of facilitating endogenous HGF signaling distinguishes it from direct receptor agonists and makes it a valuable tool for studying growth factor-mediated synaptic plasticity.

Dihexa Mechanism of Action in Research

Dihexa potentiates HGF binding to the c-Met receptor tyrosine kinase, enhancing receptor dimerization and autophosphorylation. Activated c-Met triggers multiple downstream signaling cascades including PI3K/Akt (cell survival), MAPK/ERK (synaptic plasticity), and STAT3 (gene transcription). These pathways converge to promote dendritic spine formation, synaptogenesis, and neuronal survival. Dihexa’s mechanism is allosteric potentiation rather than direct agonism, amplifying the effects of endogenous HGF at concentrations that would otherwise be subthreshold for c-Met activation.

Key Research Applications & Findings

  • Synaptic Plasticity: Research has demonstrated dihexa enhances dendritic spine density and synaptic connectivity through HGF/c-Met-mediated signaling. 
  • Cognitive Function Models: Published studies have examined dihexa’s effects on learning and memory paradigms in preclinical models with cognitive deficits. 
  • HGF/c-Met Pharmacology: Dihexa serves as a tool for studying allosteric potentiation of growth factor receptor systems. 
  • Neuronal Survival: Investigators use dihexa to study c-Met-mediated PI3K/Akt survival signaling in neuronal models.

Dihexa Compared with Related Peptides

Dihexa targets HGF/c-Met for synaptic plasticity, while Semax upregulates BDNF/NGF through melanocortin receptors, and Selank modulates GABAergic/monoamine signaling. Each peptide addresses different neurotrophic and neuromodulatory pathways.

Related products in the Axiom Research Supply catalog: Semax, Selank, Epithalon.

Research & Handling Guidelines

Dissolve in DMSO for stock solutions. Store at -20°C. Prepare working dilutions in appropriate vehicle fresh. Protect from light.

Why Choose Axiom Research Supply?

Axiom Research Supply provides Dihexa at ≥98% (HPLC verified), verified through independent HPLC analysis with third-party testing documentation. Every batch undergoes rigorous quality control including identity confirmation, purity assessment, and endotoxin testing. Our peptides are properly lyophilized and shipped with cold-chain protocols to maintain stability from production to your laboratory. Axiom Research Supply is committed to advancing metabolic peptide science with precision, reproducibility, and dedicated research support. Access our educational resources including the Axiom Research Supply Metabolic Peptide Research eBook for comprehensive scientific background.

Product Name Dihexa
Available Sizes Multiple dosage options available — see product listing
CAS Number 1401708-83-5
Molecular Formula C21H38N4O4
Molecular Weight 398.55 g/mol
Purity ≥98% (HPLC verified)
Physical Form Lyophilized Powder
Storage Store at -20°C, protect from light and moisture
Peptide Class HGF/c-Met Receptor System Activator
Key Receptor Targets HGF/c-Met receptor system
Research Applications HGF/c-Met signaling, synaptic plasticity, dendritic spine formation, neurotrophic factor research, cognitive function models
Dihexa is used to study HGF/c-Met receptor signaling, synaptic plasticity, dendritic spine formation, and cognitive function in preclinical models.
Dihexa potentiates endogenous HGF signaling at the c-Met receptor, enhancing receptor activation and downstream PI3K/Akt and MAPK/ERK signaling at subthreshold HGF concentrations.
The CAS number for Dihexa is 1401708-83-5.
Dihexa from Axiom Research Supply is for research use only and is not FDA-approved.
Dihexa is a small molecule derived from angiotensin IV peptide optimization, classified as a peptidomimetic compound.

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