A short synthetic 7-amino-acid peptide used in in vitro work on short peptides and their analytical characterisation. 10 mg vial, lyophilized powder, ≥99% HPLC purity verified by third-party analysis. For research use only.
Research areas
- Short synthetic peptides
- In vitro models
- Analytical characterisation (HPLC, mass spectrometry)
Technical data
| Field | Value |
|---|---|
| Quantity per vial | 10 mg |
| Class | Short synthetic peptide |
| Length | 7 amino acids |
| Molecular weight | ≈ 751.9 Da |
| Form | Lyophilized powder (unless stated otherwise) |
| Purity | ≥ 99% (HPLC) — see batch COA |
| Ships from | France, within 24 h on working days |
Identify the right compound before ordering
Several short peptides of similar length circulate under similar names and are routinely confused, including modified forms sold under an almost identical name. Two markers settle it, and both appear on the batch COA:
- a length of 7 amino acids;
- a measured molecular weight of about 751.9 Da.
A clearly different mass, even by a few dozen daltons, points to another compound.
Why choose this NEXUS reference
- Third-party verified purity: every batch is HPLC-tested by an independent laboratory and the certificate of analysis (COA) can be checked before ordering.
- Shipped from France: dispatched within 24 h on working days, delivered in 2–5 working days to France and 8 European countries. Free shipping from €120.
- Consistent quality: same supplier, same controls, same packaging from one batch to the next.
- Verified reviews: our customers leave their feedback on Trustpilot; we do not edit it.
Reconstitution and handling
The lyophilizate is reconstituted with bacteriostatic water, which keeps the solution preserved after opening. Add the solvent slowly down the vial wall, let it run, then swirl gently: no vigorous shaking, no vortex — shear denatures peptides. Our reconstitution calculator gives the concentration for any volume.
Storage
Lyophilized powder: -20 °C or below, protected from light and moisture; stable for years when unopened. After reconstitution: 2–8 °C, protected from light, with a reference shelf life of 28 days. For longer storage, frozen aliquots are preferable to repeated freeze-thaw cycles.
Common laboratory mistakes
- Relying on the product name alone. Different compounds circulate under similar names: the COA mass settles it.
- Using plain sterile water for a vial that will be opened several times. Without a preservative, the solution is no longer protected once the stopper has been pierced more than once.
- Vortexing the vial. Gentle swirling is enough, even if dissolution takes a minute.
- Repeatedly refreezing the reconstituted solution. Each cycle degrades a fraction of the peptide. Aliquot at reconstitution.
Frequently asked questions
How can the batch's identity and purity be checked?
Every batch comes with a certificate of analysis (COA) from a third-party laboratory: HPLC purity of at least 99% and measured molecular weight, expected around 751.9 Da. It can be viewed from the Quality page and on request before ordering.
What should this vial be reconstituted with?
Bacteriostatic water, which keeps the solution preserved after opening. Plain sterile water is unsuitable once the vial is pierced more than once.
How long does the reconstituted solution keep?
28 days at 2–8 °C, protected from light. Beyond that, frozen aliquots are preferable to repeated freeze-thaw cycles.
Where is the order shipped from and how fast?
From France, within 24 h on working days. Delivery to a pickup point or to the door, in 2 to 5 working days depending on the country. Free from €120.
In what context may this product be used?
Exclusively for laboratory and in vitro research. It is not intended for human or animal consumption, nor for diagnostic or therapeutic use.
NEXUS Quality Standard
Every NEXUS research compound is produced under strict quality control procedures. Each batch undergoes independent analytical testing to verify identity, assay accuracy, purity, microbial safety, endotoxin levels, heavy metal screening, and full batch traceability.
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For laboratory research only. Selank 10mg is not suitable for human or animal consumption. Not a drug, food or cosmetic. To be handled by qualified personnel in accordance with applicable regulations.