Selank

Selank is supplied as a laboratory research reference material for in-vitro and laboratory research use only. This synthetic heptapeptide amide is characterized by the amino-acid sequence Thr-Lys-Pro-Arg-Pro-Gly-Pro-NH2 (TKPRPGP-NH2), molecular formula C33H57N11O9, average molecular weight 751.88 g/mol, monoisotopic mass 751.4341 Da, and CAS registry number 129954-34-3. It is cross-referenced under PubChem CID 11765600 and InChIKey JTDTXGMXNXBGBZ-YVHUGQOKSA-N.

Structurally, Selank is a tuftsin-derived construct built on the N-terminal Thr-Lys-Pro-Arg motif and extended at the C-terminus with a Pro-Gly-Pro tripeptide capped as a primary amide. The C-terminal amidation and the three internal proline residues confer conformational rigidity and enhanced resistance to exopeptidase cleavage relative to the parent tetrapeptide, features which make Selank a useful reference standard in comparative peptide stability and structure-activity studies. The canonical SMILES representation is CC(C(C(=O)NC(CCCCN)C(=O)N1CCCC1C(=O)NC(CCCN=C(N)N)C(=O)N2CCCC2C(=O)NCC(=O)N3CCCC3C(=O)O)N)O.

Selank is produced by solid-phase synthetic chemistry from non-animal starting materials and is supplied as a white to off-white lyophilized powder of purity not less than 98% by HPLC. Each lot is documented with a Certificate of Analysis reporting HPLC purity, identity confirmation by mass spectrometry against the expected monoisotopic mass, appearance, and residual solvent/water content where applicable. The lyophilized form supports gravimetric handling, reconstitution in laboratory-grade aqueous or DMSO-based buffers for analytical workflows, and long-term storage stability when kept sealed, desiccated, and protected from light at the recommended temperature.

Published scientific literature has examined Selank in preclinical research, and it is frequently cited as a reference analog in tuftsin peptide chemistry, HPLC method development, mass spectrometric fingerprinting, and receptor-binding assay characterization. PEPTIDE.Power makes no therapeutic, diagnostic, or efficacy claims regarding this material and provides no administration or dosing guidance. This material is not a drug, supplement, cosmetic, or food, and is not for human or veterinary use, injection, or ingestion. Identity and purity are documented on the lot-specific Certificate of Analysis, available on request.

Supplied as a lyophilized (freeze-dried) powder in a sealed vial. A research reference material - not a finished product and not a delivery device. Net contents per unit are shown in the product options.

Store the sealed lyophilized powder at -20 C, protected from light and moisture. After reconstitution for laboratory use, keep cold and use promptly. Handle per standard laboratory practice; a Safety Data Sheet (SDS) is available on request.

This material is sold to qualified laboratory and research buyers for lawful research use only. It is not a drug, supplement, cosmetic, or food, and is not for human or veterinary use, injection, or ingestion. By purchasing, you confirm you are 21 or older and will use this material only for lawful laboratory research.