A co-lyophilized research blend combining two synthetic peptides in a single vial, in equal amounts by mass. It is used in in vitro work on peptide co-formulations. 5 mg + 5 mg vial, lyophilized powder, ≥99% HPLC purity verified by third-party analysis. For research use only.
Research areas
- Two-peptide co-formulation
- In vitro models
- Stability and homogeneity of combined lyophilizates
Technical data
| Field | Value |
|---|---|
| Quantity per vial | 5 mg + 5 mg |
| Class | Co-lyophilized research blend, two components |
| Component 1 | 29 amino acids, ≈ 3,368 Da |
| Component 2 | 5 amino acids, ≈ 711.9 Da |
| Form | Co-formulated lyophilized powder |
| Purity | ≥ 99% (HPLC) — see batch COA |
| Ships from | France, within 24 h on working days |
Same mass, not the same number of molecules
The vial states two equal amounts in milligrams. But the two components differ in size: at equal mass, they are not present in the same number of molecules.
| Component 1 | Component 2 | |
| Length | 29 amino acids | 5 amino acids |
| Molecular weight | ≈ 3,368 Da | ≈ 711.9 Da |
| Amount, 5 + 5 mg vial | ≈ 1.48 µmol | ≈ 7.02 µmol |
A "1:1" mixture in milligrams is therefore roughly a 1:4.7 mixture in moles — the reference to keep for any comparison.
What the certificate of analysis lets you check
A blend is checked component by component. The batch COA reports two peaks on HPLC, with the purity of each, and two measured molecular weights, expected around 3,368 Da and 711.9 Da. A modified, heavier form of component 1 (≈ 3,647 Da) circulates under a similar name: a mass of that order in place of 3,368 Da means it is not this reference.
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. Concentration is calculated for each component separately. 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
- Calculating the concentration on the vial total. Each component is present at the stated amount: concentration is calculated per component.
- Reading "1:1" as a molar ratio. At equal mass, the ratio is about 1:4.7 in moles.
- 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
What does this vial contain?
Two co-lyophilized synthetic peptides in equal amounts by mass: a 29-amino-acid component (≈ 3,368 Da) and a 5-amino-acid component (≈ 711.9 Da).
Is the mixture equimolar?
No. The two components differ in size, so the ratio is about 1:4.7 in moles.
How can the batch's identity and purity be checked?
The certificate of analysis (COA) from a third-party laboratory reports two HPLC peaks with purity of at least 99% and both measured molecular weights. 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. CJC-1295 (no DAC) + Ipamorelin 5mg+5mg 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.