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About this material
Selank is a synthetic linear heptapeptide composed of seven L-amino acid residues in the sequence Thr-Lys-Pro-Arg-Pro-Gly-Pro (molecular formula C33H57N11O9). It is supplied as a lyophilized powder.
Specifications
- Form
- Lyophilized powder
- Appearance
- White to off-white lyophilized powder
- Purity / assay
- 99.91% (HPLC / MS)
- Molecular formula
- C33H57N11O9
- Molecular weight
- 751.9 Da
- CAS number
- 129954-34-3
- Amino-acid sequence
- Thr-Lys-Pro-Arg-Pro-Gly-Pro
- Also known as
- TP-7, Thr-Lys-Pro-Arg-Pro-Gly-Pro, Threonyl-lysyl-prolyl-arginyl-prolyl-glycyl-proline, L-threonyl-L-lysyl-L-prolyl-L-arginyl-L-prolylglycyl-L-proline, UNII-TS9JR8EP1G
- Test methods
- HPLC · MS · LAL
- Reconstitution
- In a suitable sterile solvent, per your protocol
- Presentation
- Sealed single research vial
- Storage
- Store lyophilized at -20°C; follow your laboratory’s own protocol.
- Current lot
- SEL-2406A
Certificate of Analysis
Selank, third-party tested, per lot
LotSEL-2406A
Sample certificate. This is a representative placeholder. The signed Certificate of Analysis for this lot is issued by our research laboratory and will replace this record.
Assay purity · this lot
Illustrative99.91%
Representative trend, illustrative, not measured lot data
Result vs specification
97%Spec >= 98.0% · result 99.91%100%
- Testing lab
- Virberg
- Accreditation
- Pending
- Manufactured
- April 24, 2026
- Released
- May 13, 2026
- Retest by
- May 13, 2028
- Storage
- Store lyophilized at -20°C; follow your laboratory’s own protocol.
Purity by RP-HPLC · chromatogram
IllustrativeRetention time →Representative trace · not measured data
| Test | Method | Specification | Result |
|---|---|---|---|
| Appearance | Visual | Conforms to description | White to off-white lyophilized powder |
| Identity | Mass Spectrometry | Conforms to reference | Conforms |
| Purity | RP-HPLC | ≥ 98.0% | 99.91% |
| Molecular Mass | ESI-MS | Conforms to theoretical | Conforms |
| Water Content | Karl Fischer | ≤ 6.0% | 2.4% |
| Endotoxin | LAL (kinetic) | < 0.5 EU/mg | Pass (< 0.1 EU/mg) |
Appearance
- Method
- Visual
- Spec
- Conforms to description
- Result
- White to off-white lyophilized powder
Identity
- Method
- Mass Spectrometry
- Spec
- Conforms to reference
- Result
- Conforms
Purity
- Method
- RP-HPLC
- Spec
- ≥ 98.0%
- Result
- 99.91%
Molecular Mass
- Method
- ESI-MS
- Spec
- Conforms to theoretical
- Result
- Conforms
Water Content
- Method
- Karl Fischer
- Spec
- ≤ 6.0%
- Result
- 2.4%
Endotoxin
- Method
- LAL (kinetic)
- Spec
- < 0.5 EU/mg
- Result
- Pass (< 0.1 EU/mg)
Each lot is tested by an independent third-party laboratory. Results above correspond to lot SEL-2406A.
Download COA (PDF)Handling & storage
Supplied as a lyophilized powder. This peptide is generally soluble in water and in bacteriostatic or sterile water; reconstitute to the concentration and in the vehicle specified by your own research protocol, and gently swirl rather than shake to dissolve. Store the lyophilized powder sealed at -20 C and protected from light and moisture; after reconstitution, keep aliquots refrigerated for short-term work or frozen at -20 C or below for longer-term storage, and avoid repeated freeze-thaw cycles. Any downstream handling is performed by the buyer according to their own laboratory protocol and applicable safety practice.
Documentation & traceability
Per-lot Certificate of Analysis
The COA for this lot is published on this page, no email gate.
Lot number matches the certificate
When you receive an order, the lot printed on the vial will match the COA published here.
Independently verified
Identity, purity, mass, and endotoxin are tested by a third-party laboratory.
Tracked, protected shipping
Ships discreetly with tracking, cold-packed where the compound requires it.
- Third-party lab tested
- Per-lot COA
- Identity + purity verified
- Research-use attested
- Discreet shipping
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