What Does Epithalon Dissolve In? Solvents Explained
Solubility behaviour is where compounds in this library differ most sharply from one another. For Epithalon, the determining factors are structural: synthetic tetrapeptide (ala-glu-asp-gly).
Overview
Extremely water-friendly. There is no complexity to it at all — no greasy region, no folded shape, nothing to resist dissolving.
What Epithalon actually is
Epithalon is the smallest molecule in this library — just four amino acids. It was distilled from an extract of the pineal gland studied in the Soviet Union from the 1970s, representing an attempt to find the shortest sequence that carried the activity of a complex tissue extract.
Supplied for laboratory research use only — not for human or animal use.
Third-party tested by HPLC and LC-MS, ≥98% purity, with a Certificate of Analysis on every order. Ships across Canada.
Technical detail below
How Epithalon behaves in solution
Extremely water-soluble and effectively instantaneous to dissolve. With only four residues, two of them acidic, there is no hydrophobic character and no conformational complexity whatsoever. If an Epithalon vial does not clear immediately, the problem is the vial, not the chemistry.
Suitable solvents, in order
Structural basis
Epithalon is synthetic tetrapeptide (ala-glu-asp-gly). Epithalon is a four-residue peptide derived by Vladimir Khavinson's group from Epithalamin, a pineal gland extract studied in the Soviet Union from the 1970s. It represents the reductionist end of the peptide field — the attempt to identify the shortest sequence retaining the activity of a complex tissue extract. At 390 Da it is the smallest compound in this catalogue by a wide margin.
What Epithalon is studied for
The most-cited claim in the Epithalon literature, examined in cell-culture models.
Follows from its Epithalamin origin; studied for effects on circadian signalling in animal models.
A long-running Russian research programme examined lifespan endpoints in rodent models.
Epithalon is the flagship of Khavinson's "peptide bioregulator" framework, a distinct research tradition worth understanding as context.
Summarizes published preclinical literature — see the selected references below. Provided for research reference only; not a claim of efficacy or a description of human use.
References describe in-vitro and preclinical research and are listed for reference only — not evidence of efficacy and not a description of human use.
More Epithalon reference
Lyophilized and reconstituted storage conditions, plus the practical working window.
Diluent selection, dissolution behaviour, and the calculator preset for this compound.
The specific chemical routes by which this molecule breaks down, and how to limit each.
Which assays are informative for this molecule, and what to actually check on its COA.
Compound-specific bench practices, and the errors most often made with this molecule.
What to inspect on arrival, and which conditions actually warrant rejecting a vial.
Questions specific to this compound — structure, chemistry, and common misconceptions.
Solubility reference for other compounds
Reviewed for research-use compliance by Kobi Williams, Founder — Popular Peptides Canada. Last reviewed 22 July 2026.
Epithalon is supplied strictly as a research chemical for in-vitro laboratory and research use only. It is not intended for human or animal consumption, diagnostic, or therapeutic use. This page is educational laboratory-handling reference information — not medical advice, not usage guidance, and not a protocol.