Selank 10mg
Research Peptide
Selank is a synthetic heptapeptide analog of the endogenous tetrapeptide tuftsin, developed for neuropeptide research. Studied for effects on anxiety pathways, immune modulation and BDNF expression. 10mg per vial. For research use only.
For research use only. Not for human consumption.
Third-party lab verification
Every batch is tested by an independent laboratory using RP-HPLC to confirm identity, purity, and endotoxin levels. Sample results for Selank 10mg shown below — lot-specific COAs available on request.
Independent Analytical Laboratory
Certificate of Analysis
Document
COA-SLK-2026-0420
Product
Selank
CAS No.
129954-34-3
Molecular Formula
C33H57N11O9
Molecular Weight
751.86 g/mol
Lot Number
SLK-2026-0420
Appearance
White lyophilized powder
Manufacture Date
2026-04-20
Retest Date
2028-04-20
Amino Acid Sequence
Thr-Lys-Pro-Arg-Pro-Gly-Pro-NH2
Test Results
| Test | Specification | Result | Status |
|---|---|---|---|
| Identification | Conforms (MS) | Conforms | Pass |
| Purity (HPLC) | ≥ 98.0% | 99.48% | Pass |
| Water Content | ≤ 5.0% | 1.7% (Karl Fischer) | Pass |
| Endotoxin | < 10 EU/mg | <5 EU/mg (LAL) | Pass |
| Single Impurity | ≤ 1.0% | 0.45% | Pass |
Method
RP-HPLC, C18, 214 nm, 0.1% TFA / ACN gradient
R. Halverson
QC Analyst
Sample document — request your lot's COA for verification.
RP-HPLC Chromatogram
Selank
Detector
UV 220 nm
Retention
5.78 min
Area %
99.48%
Plates (N)
8,734
| Peak | RT (min) | Area % | Assignment |
|---|---|---|---|
| 1 | 4.36 | 0.30 | Impurity A |
| 2 | 5.78 | 99.48 | Selank |
| 3 | 6.96 | 0.23 | Impurity B |
Sample chromatogram — lot-specific traces on request.
Illustrative sample — request your lot's COA via 907-252-1640