Lyophilised · ≥99% (HPLC) ·
Supplied lyophilised. Reconstitution typically uses bacteriostatic water.
Selank is a synthetic heptapeptide analogue of the immunopeptide tuftsin, developed in Russia and stabilised against enzymatic breakdown, studied as an anxiolytic and nootropic research peptide. CAS 129954-34-3; molecular formula C33H57N11O9; sequence Thr-Lys-Pro-Arg-Pro-Gly-Pro; supplied lyophilised at ≥99% by HPLC. For laboratory research use only.
Derived from the immune-modulating fragment of the natural tetrapeptide tuftsin, Selank is a synthetic heptapeptide developed as a metabolically stabilized research analogue. By extending the parent Thr-Lys-Pro-Arg motif with a Pro-Gly-Pro tail, its designers produced a molecule far more resistant to peptidase degradation, making it a durable probe for studying regulatory peptide signalling in the central nervous system.
A peptide engineered from the body's own regulatory fragment. Tuftsin is a naturally occurring immunoactive peptide cleaved from immunoglobulin G. Russian peptide chemists at the Institute of Molecular Genetics built Selank around its core sequence specifically to slow enzymatic breakdown and to interrogate how short regulatory peptides influence anxiety-related circuits, neurotransmission and the endogenous opioid system. The result is one of the most studied members of the synthetic regulatory-peptide class.
What the research explores. The experimental literature on Selank concentrates on neuropharmacology in cellular and rodent models:
All such observations stem from in‑vitro and animal research and imply nothing about effects in humans. Full citations are listed under the Scientific References tab.
Physicochemical profile. CAS 129954-34-3 · Molecular formula C33H57N11O9 · Molecular weight 751.87 g/mol · Sequence Thr-Lys-Pro-Arg-Pro-Gly-Pro · Appearance white lyophilized powder · Soluble in water.
Specification & quality. Each individually sealed vial contains 10 mg of Selank at ≥99% purity by HPLC. Every batch is third-party tested, with a Certificate of Analysis (COA) available. Store at −20 °C, protected from light and moisture.
This product is intended for laboratory research use only (RUO). It is not a drug, food, cosmetic, or dietary supplement, and is not for human or veterinary use, ingestion, or diagnostic application. Handling is restricted to qualified research professionals operating in an appropriately equipped laboratory.
Supplied for in-vitro laboratory research use only (RUO). Not a drug, food or supplement; not for human or veterinary use.
Certificate of Analysis — lot-specific COA ships with every order and is available on request.
Each lot is tested by an independent third-party laboratory for identity (mass spectrometry) and purity (HPLC). The Certificate of Analysis for your specific batch ships with the order and is available on request — no house data, no exceptions.
References are illustrative of the research literature surrounding this compound. All claims relate to in-vitro and animal models only.
Selank is a synthetic heptapeptide developed as a metabolically stabilized research analogue of the immune-modulating fragment of the natural tetrapeptide tuftsin. Its sequence is Thr-Lys-Pro-Arg-Pro-Gly-Pro. Condor Research supplies it as a 10 mg lyophilized vial at ≥99% HPLC purity, strictly as a research-use-only reference material for in-vitro laboratory study.
Selank and Semax are distinct synthetic heptapeptides with different origins. Selank (Thr-Lys-Pro-Arg-Pro-Gly-Pro) derives from the immune peptide tuftsin and is studied in anxiolytic-focused research. Semax (Met-Glu-His-Phe-Pro-Gly-Pro) derives from the ACTH(4-10) fragment and is investigated as a nootropic research model. Both are sold as separate ≥99% HPLC, research-use-only reference compounds.
Selank and DSIP are different neuropeptides studied in different contexts. Selank is a tuftsin-derived heptapeptide (Thr-Lys-Pro-Arg-Pro-Gly-Pro) investigated in anxiolytic-focused research. DSIP (Delta Sleep-Inducing Peptide) is a naturally occurring nonapeptide studied in sleep and neuroregulatory research. Both are supplied as separate 10 mg vials at ≥99% HPLC purity, for research use only.
That depends on your study design. A standalone 10 mg Selank vial lets you set its concentration independently, while the co-formulated Semax + Selank blend (10 mg + 10 mg) supplies both heptapeptides in one vial for studies examining them together. All formats are research-use-only reference materials. For pricing comparison, contact info@condorresearch.com.
The two share a heptapeptide length but come from unrelated parent molecules. Selank is engineered from tuftsin, an immune-derived peptide, giving it a Thr-Lys-Pro-Arg-Pro-Gly-Pro sequence. Semax is built from the ACTH(4-10) corticotropin fragment. Their different origins are why they are studied as distinct research tools rather than interchangeable neuropeptide analogues.
Both are short synthetic peptides, but their research targets differ entirely. Selank is a tuftsin-derived heptapeptide studied in anxiolytic and neuropeptide research. Kisspeptin-10 is a 10-amino-acid fragment of the KISS1-encoded kisspeptin family, investigated at the top of the reproductive hormone cascade. Each is supplied as a separate ≥99% HPLC, research-use-only reference peptide.
Yes. Selank is supplied strictly for laboratory research use only (in vitro). It is not a medicine, food, supplement, cosmetic, or medical device, and is not for human or veterinary use, administration, or consumption. Condor Research provides no human-use dosing or protocols. Purchase is restricted to qualified professionals and institutions aged 18 or over.
For analytical laboratory preparation only, Selank is water-soluble and can be reconstituted with a sterile aqueous diluent; the volume chosen sets the working concentration. Store the sealed lyophilized vial at -20°C, protected from light, with a 24-month shelf life from manufacture. This is laboratory handling information, not guidance for any human or animal use.
Yes. Each Selank lot is tested by an independent third-party laboratory by HPLC for identity and purity, with mass spectrometry confirmation, and ships against a batch-specific Certificate of Analysis (COA) verifying ≥99% purity. To request the COA for the current lot before ordering, contact info@condorresearch.com.
Each Selank vial contains 10 mg of lyophilized peptide at ≥99% HPLC purity, supplied as a research-use-only reference material. The stated mass is an analytical reference quantity, not a dose. Vial fill and identity are verified by independent third-party testing and documented on the lot's Certificate of Analysis.
Third order with Condor. Batch-to-batch variation is minimal, which matters for our longitudinal work. The mono-labelled vials are easy to track.
No marketing fluff — just characterised material with paperwork. The data sheet and CAS matched our records precisely.
Lyophilised cake was uniform and dissolved fully. Would appreciate a digital COA portal, but the PDF on request worked fine.
Identity by MS confirmed in our facility. Communication around storage and handling was precise and professional.
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