Catalogue / Vesugen
Vesugen
Also written as Lys-Glu-Asp, KED peptide.
A tripeptide bioregulator from the Khavinson series, sold in the same family as Livagen and Prostamax and sharing their first three residues.
| Class | Short bioregulator peptides |
| Determination | Peptide analysis, catalogue compound |
| Price | 341 USD |
Vesugen is identified against a certified reference standard rather than against a published mass, because commercially supplied material varies in composition between suppliers. Purity is reported separately by reversed-phase chromatography at 214 nm and describes the chromatographable fraction only.
| Shares Lys-Glu-Asp with both Livagen and Prostamax, which are the same three residues with a fourth added. An incomplete synthesis of either is an exact match for this compound. |
| At tripeptide size the counter-ion and residual water together can exceed a third of the delivered powder, so net peptide content is not optional for a meaningful milligram figure. |
| No mass figure is published on this page. The composition supplied under this trivial name is not documented in a public chemical database, so identity is established against a certified reference standard at the time of analysis. |
Every compound fails in its own way. A generic peptide method applied without regard to these specifics produces a number that looks like a result and is not one.
Di, tri and tetrapeptides. Low molecular weight makes them the hardest class to quantify honestly: at this size the counter-ion and residual water can outweigh the peptide itself.
LC-MS identity, purity by RP-HPLC with a polar-retentive column since these peptides are barely retained on standard C18, and net peptide content because a purity figure alone is close to meaningless here.
Where the delivered milligram figure matters rather than the percentage, net peptide content by combustion analysis and water by Karl Fischer are added, and the certificate carries a closed mass balance instead of a single purity number.
| LC-MS identity | Measured mass |
| RP-HPLC purity | Area at 214 nm |
| Net peptide content | Milligrams |
| Water content | Karl Fischer |
| Counter-ion | Ion chromatography |
| Bacterial endotoxins | USP <85> |
What is the molecular weight of Vesugen?
No molecular weight is published for Vesugen on this page, because the composition of commercially supplied material varies between suppliers and an unverified figure on an analytical site is worse than an absent one. Identity is established against a certified reference standard at the time of analysis.
How is Vesugen tested for purity and identity?
LC-MS identity, purity by RP-HPLC with a polar-retentive column since these peptides are barely retained on standard C18, and net peptide content because a purity figure alone is close to meaningless here. Purity describes the chromatographable fraction only and is not the same quantity as the peptide mass delivered per vial.
What goes wrong when Vesugen is analysed?
Shares Lys-Glu-Asp with both Livagen and Prostamax, which are the same three residues with a fourth added. An incomplete synthesis of either is an exact match for this compound.
What does Vesugen analysis cost at ANALYTON?
Peptide analysis, catalogue compound is priced at 341 US dollars, covering the determinations described on this page. Content, safety and elemental determinations are ordered alongside and are priced separately on the price list.
Updated 2026-09-01. Masses computed at build, not transcribed.