⚠ FOR LABORATORY RESEARCH USE ONLY · NOT FOR HUMAN CONSUMPTION · QUALIFIED RESEARCHERS 21+
// PB-0040 Small Molecule Cognitive

Dihexa

HGF amplifier · peptidomimetic.

Dihexa is a small-molecule peptidomimetic developed at Washington State University from angiotensin IV structure-activity studies. Research interest focuses on its reported effects on cognition and synaptic plasticity via HGF/c-Met signaling amplification. Supplied as research-grade material with 3rd-party HPLC verification and full Certificate of Analysis per lot.

01

Compound profile.

// CHEMICAL & STRUCTURAL SPEC — DIHEXA
MOLECULAR FORMULA
C22H35N3O4
Small Molecule · cognitive class.
MOLECULAR WEIGHT
405.5 Da
Monoisotopic / reported mass.
CLASS
Small Molecule
Compound classification.
ORIGIN
Washington State University
Source or discovery context.
STUDIED PATHWAYS
HGF / c-Met amplification
Reported in published literature.
REPORTED HALF-LIFE
~3–4 hr
Oral bioavailable.
HPLC PURITY
99.8%
Minimum release spec · typical >99.9%.
APPEARANCE
White lyo.
White to off-white lyophilized form.
// PRIMARY STRUCTURE
N-hexanoic-Tyr-Ile-(6)-aminohexanoic amide

// Not a true peptide — Dihexa is a peptidomimetic small molecule derived from angiotensin IV (Ang IV) structure-activity research. The N-hexanoyl and C-terminal aminohexanoic modifications are key to its oral bioavailability and CNS penetration.
02

What the literature reports.

Dihexa is a small-molecule peptidomimetic developed at Washington State University from angiotensin IV structure-activity studies. Research interest focuses on its reported effects on cognition and synaptic plasticity via HGF/c-Met signaling amplification.

Reported mechanism

Published literature describes Dihexa as an allosteric amplifier of hepatocyte growth factor (HGF) signaling at the c-Met receptor — rather than a direct c-Met agonist. Reported effects include enhanced dendritic spine density, synaptic plasticity, and cognitive performance in rodent models including Alzheimer's disease models.

Research context

An investigational research compound. Not FDA-approved. No clinical trials as of publication. Continues to attract interest in cognitive and neurodegenerative disease research.

The above summarizes published research literature. This is not medical advice, a protocol, or a recommendation for use. This compound is supplied for laboratory research only.

03

Storage & release.

SHIP TEMP
Ambient
Lyophilized; stable at room temp in transit.
UNOPENED
Refrigerate
Lyophilized, protected from light.
RECONSTITUTED
~28 days
At 2–8°C; never freeze solutions.
RELEASE DOC
COA · per lot
3rd-party analytical · attached at ship.
lab@peptidebros:~$ cat release.dihexa.DHX-26-Q2-0018.log
// lot release record
compound Dihexa (C22H35N3O4)
lot.id DHX-26-Q2-0018
class small molecule
mw.theoretical 405.5 Da
mw.observed 405.5 Da  [PASS]
purity.hplc 99.91%  [> 99.5% spec]
endotoxin < 0.125 EU/mL  [PASS]
sterility no growth  [PASS]
release.status RELEASED
04

Common questions.

What's the molecular profile?+

Dihexa is a small molecule (molecular formula C22H35N3O4, MW approximately 405.5 Da) — not a peptide.

The full structural data and release specifications are in the Compound Profile section above. Every lot ships with an independently verified Certificate of Analysis.

How is purity verified?+

Each lot is independently verified by a 3rd-party analytical laboratory (STERIS Labs, Alcami Analytical, or equivalent) before release. Release specification is HPLC purity ≥ 99.5% (typical > 99.8%), mass spectrometry identity match within ±0.5 Da, water content < 5.0% Karl Fischer, and endotoxin < 0.25 EU/mL by LAL (USP <85>).

Look up the full COA for your lot at coa-lookup.html.

How is the compound shipped and stored?+

All compounds ship at ambient temperature in discreet, tamper-evident packaging. Lyophilized peptide powder is stable at room temperature for typical transit windows, which is why research-grade vendors ship this way. Tracked; signature not required.

Store unopened lyophilized product at 2–8°C protected from light. Once reconstituted, most peptides are stable at 2–8°C for approximately 28 days (compound-dependent).

Is this compound FDA-approved?+

An investigational research compound. Not FDA-approved. No clinical trials as of publication. Continues to attract interest in cognitive and neurodegenerative disease research.

All PeptideBros compounds are sold strictly as chemical reference materials for in-vitro laboratory research. They are not for human consumption.

Every lot,
on paper.

HPLC-verified. Mass-spec confirmed. Ambient-stable transit. The paperwork other vendors hope you never ask for.