How to Read a Selank Certificate of Analysis (COA)
A Certificate of Analysis is only useful if you know which number on it matters for the compound in front of you. For Selank, the informative checks are not the same as for a generic short peptide.
In plain English
Confirm the weight near 751.9. The oxygen-damage check that matters for Semax and TB-500 simply does not apply here, since Selank has none of the vulnerable amino acids. Look instead at the separation trace for incomplete versions of the chain.
What Selank actually is
Selank came out of the same Moscow programme as Semax, built from tuftsin — a tiny natural fragment released from antibodies — with the same stabilising tail added. Its research literature centres on anxiety-related behaviour and the brain signalling systems associated with it.
Supplied for laboratory research use only — not for human or animal use.
Third-party tested by HPLC and LC-MS, ≥99% purity, with a Certificate of Analysis on every order. Ships across Canada.
Technical detail below
Assays that are informative for Selank
What to check on the COA
Confirm the molecular ion near 751.9 Da. With no oxidation-prone residues, the oxidised-satellite check that matters for Semax and TB-500 is not the relevant concern — focus instead on the RP-HPLC trace for deletion sequences at the proline positions.
Deletion sequences arising at the consecutive proline couplings.
Verify a Popular Peptides batch
Every batch is third-party tested by HPLC and LC-MS with a published Certificate of Analysis (≥99% purity). Enter a lot number to pull the COA for the exact vial in front of you.
What Selank is studied for
The most-populated area of the Selank literature, examined in behavioural anxiety models.
Studies have investigated interaction with both systems without the sedative profile of classical anxiolytics.
Its parent tetrapeptide is immunomodulatory, and some research follows that thread.
Investigated in learning and memory paradigms alongside its stress-response work.
Summarizes published preclinical literature. Provided for research reference only; not a claim of efficacy or a description of human use.
More Selank reference
Lyophilized and reconstituted storage conditions, plus the practical working window.
Diluent selection, dissolution behaviour, and the calculator preset for this compound.
Which solvents work, why, and what abnormal dissolution behaviour indicates.
The specific chemical routes by which this molecule breaks down, and how to limit each.
Compound-specific bench practices, and the errors most often made with this molecule.
What to inspect on arrival, and which conditions actually warrant rejecting a vial.
Questions specific to this compound — structure, chemistry, and common misconceptions.
Purity & COA reference for other compounds
Selank is supplied strictly as a research chemical for in-vitro laboratory and research use only. It is not intended for human or animal consumption, diagnostic, or therapeutic use. This page is educational laboratory-handling reference information — not medical advice, not usage guidance, and not a protocol.