What is the amino acid sequence of Epitalon?
Epitalon is a research peptide whose amino acid sequence is on the public registry record. The published sequence is Ala-Glu-Asp-Gly. Its molecular formula is C14H22N4O9. Its molecular weight is 390.35 g/mol. The CAS Registry Number is 307297-39-8. PubChem CID 219042 indexes the structure.
Sequence. Ala-Glu-Asp-Gly
Class. peptide.
Formula. C14H22N4O9.
Mass. 390.35 g/mol.
Analytical note. Identity confirmation by mass spectrometry uses the mass calculated from the formula. Sable's release specification is ≥99% by HPLC with identity confirmed against the expected mass (quality page). Research use only. Not a medicine. Not for human or veterinary use.
Sources
Epitalon: reference facts
8 Epitalon values, each linked to its public source; see the Epitalon reference page.
| Synonyms | Epithalon; AEDG peptide; tetrapeptide Ala-Glu-Asp-Gly (pubchem.ncbi.nlm.nih.gov) |
|---|---|
| Compound class | peptide (pubchem.ncbi.nlm.nih.gov) |
| CAS Registry Number | 307297-39-8 (pubchem.ncbi.nlm.nih.gov) |
| Sequence | Ala-Glu-Asp-Gly (pubchem.ncbi.nlm.nih.gov) |
| Molecular formula | C14H22N4O9 (pubchem.ncbi.nlm.nih.gov) |
| Molecular weight | 390.35 g/mol (pubchem.ncbi.nlm.nih.gov) |
| PubChem CID | 219042 (pubchem.ncbi.nlm.nih.gov) |
| Storage (lyophilised) | -20 °C, dry, protected from light (sigmaaldrich.com) |
Calculated sequence properties
Computed from the listed sequence. See the methodology.
| Length | 4 residues |
|---|---|
| Theoretical pI | 3.55 (calculated from sequence) |
| Net charge at pH 7 | -2.02 (calculated) |
Sizes and prices at Sable
| Vial | Price | Per mg | UK same-size check (2026-10-16) |
|---|---|---|---|
| 5 mg | £12.93 | £2.59 | no same-size match |
| 10 mg | £13.93 | £1.39 | lowest other £13.95 across 13 UK sellers |
| 50 mg | £24.98 | £0.50 | lowest other £25.00 across 6 UK sellers |
Multi-vial pricing on the same item: 3+ vials 10% off, 5+ vials 15% off, 10+ vials 20% off. Every lot has a certificate of analysis: CoA library.
Typical analytical method
| HPLC column | C18 reversed-phase (100-120 A pore) |
|---|---|
| Mobile phase | A: water + 0.1% TFA; B: acetonitrile + 0.1% TFA; linear gradient (e.g. 5-65% B over 20-30 min) |
| Detection | 214-220 nm (peptide bond) |
General literature method. The lot CoA records the method actually used. How to read an HPLC chromatogram.
Related questions
Lyophilised storage on file
From the Sable storage reference (lyophilised material only; temperature, light, moisture). Literature basis is linked per row. See peptide storage.
| Compound | Lyophilised storage | Light / notes |
|---|---|---|
| Epitalon | -20 C long term (-80 C acceptable), sealed and desiccated; 2-8 C for weeks | protect from light; Asp-Pro/Asp-Gly motif: hydrolysis/isomerisation risk in solution (source) |
| Epitalon sodium | -20 C long term (-80 C acceptable), sealed and desiccated; 2-8 C for weeks | protect from light; no specific sequence liabilities identified from sequence data on file (source) |
Typical analytical method: Epitalon
Reference HPLC and MS conditions from the Sable analytical-methods file; a lot's CoA states the method actually used. See how to read a CoA.
| Compound | HPLC column / detection | MS / expected ion |
|---|---|---|
| Epitalon | C18 reversed-phase (100-120 A pore); 214-220 nm (peptide bond) | ESI-MS (positive mode); LC-MS for identity; [M+1H]1+ ~391.4; [M+2H]2+ ~196.2; [M+3H]3+ ~131.1 |
Research use only. Not a medicine. Not for human or veterinary use.