Epitalon
Pineal tetrapeptide Ala-Glu-Asp-Gly
Identifier graph
Cross-references to canonical chemistry knowledge graphs. Each binding is the same identity used in PubMed-indexed literature.
- CAS Registry Number
- 307297-39-8 · CAS Common Chemistry
- InChIKey
-
HGHOBRRUMWJWCU-FXQIFTODSA-N - PubChem CID
- CID 219042
- Wikidata
- Q27285389
- Molecular formula
C14H22N4O9- Molecular weight
- 390.35 g/mol
- Peptide sequence
Ala-Glu-Asp-Gly- IUPAC name
- (4S)-4-[[(2S)-2-aminopropanoyl]amino]-5-[[(2S)-3-carboxy-1-(carboxymethylamino)-1-oxopropan-2-yl]amino]-5-oxopentanoic acid
What is Epitalon?
Epitalon (also spelled Epithalon) is a synthetic tetrapeptide Ala-Glu-Asp-Gly developed by Vladimir Khavinson and colleagues, derived from the pineal-gland peptide Epitalamin. It is among the most-studied Khavinson short peptides and the subject of a substantial Russian/Eastern European research literature focused on age-related telomere biology.
CAS 307297-39-8, molecular formula C₁₄H₂₂N₄O₉, molecular weight 390.35 g/mol. Wikidata QID Q27285389, PubChem CID 219042.
Mechanism of action
Epitalon's most-cited reported effect is induction of telomerase activity in cultured human somatic cells and consequent telomere lengthening — observations from the Khavinson group and a small number of independent labs. The proposed mechanism is direct DNA binding at the hTERT promoter (the telomerase reverse transcriptase gene) with consequent upregulation of telomerase expression.
Wider research has reported antioxidant effects, melatonin- synthesis-pathway interaction, and modulation of pineal-axis gene expression in rodent models.
Research context
Investigated in preclinical and small clinical studies of age-related decline, telomere biology, and pineal-axis function. Like other Khavinson peptides, the bulk of the foundational literature is from the Khavinson group; Western independent replication is more limited.
Analytical specifications
Every batch of Epitalon supplied by NMChem is characterised by reversed-phase HPLC for purity determination and by mass spectrometry for identity confirmation. Certificate of Analysis (COA) documents are issued per batch and made available on request.
Identity is confirmed by electrospray-ionisation mass spectrometry (ESI-MS); the observed mass falls within ±2 Da of the theoretical monoisotopic mass calculated from the residue sequence. Purity is determined by reversed-phase HPLC on a C18 column with a trifluoroacetic-acid-modified water/acetonitrile gradient and reported as the area-under-curve percentage of the main peak at 214 nm. NMChem specification is ≥99% main peak. Material ships as lyophilised powder and must be reconstituted in sterile water or bacteriostatic water immediately before use.
UK regulatory status
Supplied as a research-grade reference standard for laboratory use only. Not a licensed medicinal product in the United Kingdom and not approved by the MHRA for human or veterinary administration. Sale is restricted to researchers, institutions and laboratory professionals; the compound must be retained within research premises. End-user compliance with the Human Medicines Regulations 2012, the Misuse of Drugs Act 1971 (where applicable) and local institutional biosafety policy is the responsibility of the buyer.
Research literature
Selected peer-reviewed publications from PubMed referencing this compound.
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Overview of Epitalon-Highly Bioactive Pineal Tetrapeptide with Promising Properties.
Araj SK et al. · International journal of molecular sciences · 2025
PubMed PMID 40141333 -
Epitalon protects against post-ovulatory aging-related damage of mouse oocytes
Yue X et al. · Aging · 2022
PubMed PMID 35413689 -
Epitalon increases telomere length in human cell lines through telomerase upregulation or ALT activity.
Al-Dulaimi S et al. · Biogerontology · 2025
PubMed PMID 40908429
Related compounds
Other research compounds in adjacent mechanism classes or commonly used alongside Epitalon.
Frequently asked questions about Epitalon
Does Epitalon actually activate telomerase?
Is Epitalon the same as Epithalon?
Get research-grade Epitalon from NMChem
UK supplier · HPLC and MS verified · Per-batch Certificate of Analysis · Tracked Royal Mail dispatch.