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Selank
$54.99
Orders processed within 24 hours · Free shipping on orders over $250
Discount per Quantity
| Quantity | Discount | Price |
|---|---|---|
| 5 - 10 | 5% | $52.24 |
| 11 - 20 | 10% | $49.49 |
| 21+ | 15% | $46.74 |
Rigorous Third-Party Testing
Every batch of our research chemicals and peptides undergoes third-party testing.
Disclaimer: This product is intended solely for laboratory research purposes. It is not suitable for consumption by humans, nor for medical, veterinary, or household purposes. Kindly review our Terms & Conditions before making a purchase.
Always quality-tested, verified with third party COA’s
At every step, we prioritize quality by conducting rigorous third-party testing on all our products. These tests focus on five key characteristics- identity, purity, sterility, and endotoxin levels, and heavy metal content-ensuring that each product meets the highest standards of quality with independent third-party Certificates of Analysis (COAS) to verify our commitment to excellence.
Identity Test
Identity testing ensures that the product contains the correct ingredient as labeled, verifying its authenticity and matching it to established reference standards.
Purity Test
Purity and concentration testing verifies that the ingredient is present in the correct amount, with a purity of 99% or higher to meet stringent quality standards.
Sterility Test
Sterility testing ensures that the product is completely free from bacteria, fungi, and other microorganisms.
Endotoxin Test
Endotoxicity testing specifically detects and quantifies lipopolysaccharides (LPS), components of bacterial cell walls, to ensure the product is free from endotoxins.
Heavy Metals Test
Heavy metals testing ensures that the product is free of heavy metals such as lead, arsenic, mercury, cadmium, and other heavy metals.
Identity Test
Identity testing ensures that the product contains the correct ingredient as labeled, verifying its authenticity and matching it to established reference standards.
Purity Test
Purity and concentration testing verifies that the ingredient is present in the correct amount, with a purity of 99% or higher to meet stringent quality standards.
Sterility Test
Sterility testing ensures that the product is completely free from bacteria, fungi, and other microorganisms.
Endotoxin Test
Endotoxicity testing specifically detects and quantifies lipopolysaccharides (LPS), components of bacterial cell walls, to ensure the product is free from endotoxins.
Heavy Metals Test
Heavy metals testing ensures that the product is free of heavy metals such as lead, arsenic, mercury, cadmium, and other heavy metals.
*Disclaimer: This product is intended solely for laboratory research purposes. It is not suitable for consumption by humans, nor for medical, veterinary, or household purposes.Kindly review our Terms & Conditions before making a purchase.
Shop Selank from Spark Peptide, a trusted supplier of research compounds tested for
99%+ purity by independent third-party labs, including Janoshik and Finnrick, with Certificates of Analysis. Each
order ships fast and securely via USPS, with knowledgeable customer support available on phone and email. Sold for
research use only.
Note: Selank is supplied as a lyophilized peptide to support stability during
storage and transport. Reconstituted solutions should be handled using standard laboratory procedures and stored
according to established peptide stability guidelines.
Selank Peptide Characteristics
| Property | Description |
| Name | Selank (synthetic tuftsin analogue; Thr-Lys-Pro-Arg-Pro-Gly-Pro) |
| Sequence | Thr–Lys–Pro–Arg–Pro–Gly–Pro (TKPRPGP) |
| Molecular Weight | 751.9 g/mol (free peptide; may vary slightly in salt form) |
| Molecular Formula | C₃₃H₅₇N₁₁O₉ |
| PubChem CID | 11765600 |
| Peptide Length | Heptapeptide (7 amino acids) |
| Product Form | Selank 10 mg lyophilized powder supplied in sterile research vials |
| Purity | ≥99% by HPLC, verified with Certificate of Analysis (COA) |
| Solubility | Freely soluble in sterile water or bacteriostatic water following reconstitution; solutions should be prepared under controlled laboratory conditions |
Selank: Handling & Storage Guidelines
Proper handling and storage of Selank are essential to preserve peptide integrity and ensure reproducible laboratory outcomes. As a short-chain synthetic peptide supplied in lyophilized form, it is sensitive to moisture, temperature fluctuations, and repeated freeze–thaw cycles.- Storage Conditions: Store unopened lyophilized vials at -4°F to -20°F (-20°C to -29°C) for long-term stability. Short-term storage may be maintained at 36°F to 46°F (2°C to 8°C). Protect from direct light, heat, and humidity.
- Reconstitution: Reconstitute using sterile bacteriostatic water under aseptic laboratory conditions. For best stability, purity, and consistent results, buy our bacteriostatic water with your Selank order. Gently swirl, do not shake, to avoid peptide degradation.
- Aliquoting & Freeze–Thaw: After reconstitution, aliquot into smaller sterile containers if multiple uses are anticipated. Avoid repeated freeze–thaw cycles, as these may affect peptide stability.
- Working Solution Storage: Store reconstituted solutions at 36°F to 46°F (2°C to 8°C) and use within established laboratory timeframes. For extended storage, aliquots may be kept at -4°F to -20°F (-20°C to -29°C).
- Laboratory Compliance: Handle using appropriate personal protective equipment and in accordance with institutional research protocols. Selank is designated strictly for laboratory research use only.
COA / Quality Assurance
Each lot of Selank is accompanied by a lot-specific Certificate of Analysis (COA) to support research reproducibility, transparency, and documentation standards. Spark Peptide works with independent third-party analytical laboratories, including Janoshik, to verify product specifications prior to release. COAs are designed to provide comprehensive analytical data and typically include:- Peptide Identity: Confirmation by high-performance liquid chromatography (HPLC) and/or mass spectrometry to verify molecular composition and sequence integrity.
- Purity Assessment: Quantitative purity analysis, commonly ≥99% by HPLC, with chromatogram data included.
- Sterility (if applicable): Sterility testing data where relevant to the product format.
- Endotoxin Levels: Endotoxin screening to ensure suitability for controlled laboratory research environments.
- Storage Recommendations: Stability guidance to preserve peptide integrity.
