What is prostamax, and what is it studied for?
Prostamax is the tetrapeptide Lys-Glu-Asp-Pro, formula C20H33N5O9, mass 487.5, CAS 473578-47-1, one of the short synthetic peptides from the St Petersburg bioregulator programme, associated in that literature with prostate tissue models. Its published record is thin and from one group. The current certificate reports 12.82 mg of content against a 20 mg label, which this guide states plainly. The material is for in-vitro research only.
What is the structure of Prostamax?
Four residues with free termini: a basic lysine, two acidic residues and a C-terminal proline, giving a net negative charge near minus one at neutral pH and immediate water solubility. The product copy previously described it as a preparation of variable composition; PubChem lists it as this defined tetrapeptide and the certificate's identity mass, 487.5, agrees, so the identifiers are now recorded.
| Identifier | Value |
|---|---|
| Molecular formula | C20H33N5O9 |
| Molecular weight | 487.5 g/mol |
| Residues | 4 |
| CAS number | 473578-47-1 |
| PubChem CID | 9848296 |
| Current lot | PROS20-0318 |
How is Prostamax thought to work?
As for the rest of the series, the designers propose direct interaction with DNA that alters gene expression; no receptor is identified and the model is not independently established. The specific literature on this tetrapeptide is limited to the programme's own cell and rodent reports.
Which research areas use Prostamax?
| Area | Typical models and endpoints |
|---|---|
| Prostate cell and tissue models | Cell-culture and rodent work from the bioregulator programme. |
| Bioregulator comparisons | Side-by-side work with testagen, vesugen and the other Khavinson short peptides. |
| Analytical chemistry | A tetrapeptide for early-eluting HPLC and MALDI identity method work. |
| Content versus label | A worked example, from the catalogue's own certificate, of why the content figure is used in calculations. |
What does the published literature show?
Anisimov and Khavinson's 2010 Biogerontology review places the prostate-associated tetrapeptide in the series; primary reports are sparse, Russian-language in part, and from one laboratory group. There is no registered clinical study and no approved product. Research use is in-vitro and preclinical.
How is Prostamax handled in the laboratory?
Dissolves instantly in water or buffer. No oxidation-prone residues; aspartate isomerisation is the slow route, so hold stocks near neutral. Store lyophilized at minus 20 °C; aliquot and freeze. Use the certificate's measured content, not the label, when preparing a stock. The concentration table covers volumes and syringe units; the storage guide covers stability by compound class.
What does the current certificate show?
Lot PROS20-0318 tested at 99.9% purity by RP-HPLC (214 nm), identity confirmed by MALDI-MS, endotoxin ≤0.05 EU/mL. The certificate is in the COA library and the lot number on the vial matches it. Sold as 20 mg per vial at $60, for laboratory research only.
Certificate history for Prostamax
Every certificate the library holds for this compound, newest first. A replaced lot stays listed so the history can be read; the certificate dataset reads all 114 together.
| Lot | Issued | Size | Identity | Purity | Content | Status |
|---|---|---|---|---|---|---|
| PROS20-0318 | Apr 3, 2026 | 20 mg | MALDI-MS | 99.9% | 12.82 mg | Current |
Frequently asked questions
Why does the certificate read 12.82 mg on a 20 mg label?
Because content is a measured mass and the label is nominal; this lot measured at 64% of label. The figure is on the public certificate and in the certificate dataset. Use 12.82 mg in any calculation, and ask support for the lot report before ordering.
What does the current certificate show?
Lot PROS20-0318: identity by MALDI-MS at 487.5, purity 99.9% by RP-HPLC at 214 nm, content 12.82 mg, endotoxin below 0.05 EU/mL. Issued 3 April 2026.
How does it differ from testagen and vesugen?
All three are Lys-Glu-Asp-based: vesugen is the tripeptide Lys-Glu-Asp, testagen adds glycine, prostamax adds proline. Masses 390.4, 447.4 and 487.5 respectively.
References
- Anisimov VN, Khavinson VK. Peptide bioregulation of aging: results and prospects. Biogerontology. 2010;11(2):139-149.
- PubChem CID 9848296, Prostamax. National Library of Medicine. Read 2 October 2026.
Clinical results cited above describe regulated trials of pharmaceutical products and are given as context for research interest only. Nothing on this page describes or recommends use of the material sold here in humans or animals.
Prostamax 20 mg
$60 per vial
Lot PROS20-0318 · 99.9% RP-HPLC (214 nm) · certificate published
View productRelated
- Testagen research guide · Testagen 20 mg
- Vesugen research guide · Vesugen 20 mg
- What 114 certificates of analysis show: purity, content, methods and turnaround across every Pepstral lot, as a dataset
- Pinealon, Vilon, Vesugen, Testagen, Prostamax and Thymalin compared: sequences, masses and lots
- Which receptor does each research peptide act on? A target table for the catalog
- Research peptide reference table: length, formula and molecular weight for 12 compounds
- Glossary of certificate terms
