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Cognition
Product
Cognition · 99%+ purity
Selank
Selank is a synthetic analog of the immunomodulatory peptide tuftsin. It produces anxiolytic (anti-anxiety) effects comparable to benzodiazepines but without sedation or dependence, while supporting immune modulation and mental clarity.
Scientific Profile
Size
10 mg
Purity
99%+
Key Benefits
Anxiety reduction without sedation
Improved stress resilience
Cognitive clarity under pressure
B/.45PAB
₡35,000 CRC
SHIPS TO COSTA RICA · PANAMA
JANOSHIK
Research Chemicals
For Research Use Only
PURA VIDA SCIENCE
puravidapeptidescience.com
Pura Vida · Costa Rica
CERTIFICATE OF ANALYSIS
For Research Use Only
Product Name:Selank
CAS Number:129954-34-3
Molecular Formula:C₃₃H₅₇N₁₁O₉
Product No.:800067
Batch Number:26010501-01
Manufacturing Date:Jan 28, 2026
Retest Date:Jan 27, 2028
Appearance:White powder
Storage:Short Term: 2–8°C · Long Term: below –10°C
| TEST | SPECIFICATION | RESULT | METHOD |
|---|---|---|---|
| Appearance | White or almost white powder | White powder | Visual |
| Solubility | Soluble in H₂O | Conforms | Visual |
| HPLC | Main peak conforms | Conforms | HPLC |
| Mass Spectrum | 751.9 ± 1.0 | 751.4 | MS |
| Purity (HPLC) | NLT 98.0% | 99.8% | HPLC |
| Acetic Acid | NMT 20.0% | 17.8% | HPLC |
| Trifluoroacetate | NMT 0.5% | N.D | Ion Chrom. |
| Water Content (KF) | NMT 8.0% | 2.4% | KF |
| Peptide Content | NLT 75.0% | 79.6% | Assay |
| Residual Solvent | Dichloromethane/Acetonitrile/DMF NMT limits | Conforms | GC |
| Bacterial Endotoxins | NMT 10 EU/mg | Conforms | LAL |
| Microbial Limits | TAMC/TYMC NMT 100 cfu/g | Conforms | Micro |
| Peptide Sequence | Thr-Lys-Pro-Arg-Pro-Gly-Pro | Conforms | LC-MS/MS |
HPLC Chromatogram
Purity: 99.8%
LC-MS Spectrum
Observed Mass: 751.4 Da
Approved By:
Quality Control
Quality Approved
Date:
Jan 28, 2026
COA ID:
JRC-COA-2601050101
This Product is for Research Use Only and Not Intended for Human Consumption