Selank — Synthetic Tuftsin Analog Research Peptide
Selank is a synthetic heptapeptide developed as an analog of tuftsin, a naturally occurring immunomodulatory peptide fragment of the IgG heavy chain. It has become a widely referenced compound in anxiolytic and cognitive-function research models.
Researchers studying stress-response pathways and cognitive-performance models frequently use Selank as a reference compound in comparative peptide-analog studies, examining its structural modifications relative to native tuftsin and their effect on receptor stability.
From Native Tuftsin to a Stable Research Analog
Native tuftsin is broken down quickly once outside a controlled environment, limiting its practicality as a standalone research tool. Selank's modifications are aimed at improving that stability without eliminating the receptor-relevant structure researchers are trying to study — a common design pattern across many synthetic peptide analogs derived from short-lived native fragments.
Research Applications
Selank is most frequently referenced in anxiolytic and cognitive-performance research models, where it's used as a comparison point for examining stress-response pathway activity and its structural relationship back to native tuftsin.
Selank Among Specialty Research Compounds
Selank and Epithalon both occupy a specialty niche in Northline's catalog distinct from the tissue-repair, metabolic, and growth-hormone categories — each tied to a narrower, specific research literature (anxiolytic/cognitive research for Selank, cellular senescence for Epithalon) rather than a broad pathway shared with several other catalog compounds.
Purity Verification for Selank
As a synthetic analog rather than an exact native-sequence replica, confirming Selank's specific structural modifications relative to native tuftsin — not just an approximate amino-acid composition — is what mass-spectrometry sequence verification is specifically checking for, beyond the purity percentage alone.
Molecular Profile
Selank carries CAS number 129954-34-3. Its seven-residue structure builds on the native tuftsin sequence with modifications intended to improve research stability, making correct-sequence confirmation directly relevant to whether those specific stability-improving changes are actually present in what you receive.
Who Orders Selank
Demand comes from academic neuroscience and stress-response research labs, biotech groups studying cognitive-performance pathways, and contract research organizations running comparative anxiolytic-model studies.
Why Researchers Choose Northline's Selank
Northline verifies every Selank lot through independent HPLC purity testing and mass-spec sequence confirmation, with a certificate of analysis included. As with other short synthetic analogs, this verification is straightforward to obtain — a COA without it is an easy thing to ask any supplier to fix.
USA-Based, Worldwide Shipping
We ship cold-chain to laboratories across the USA and worldwide. Contact our team about lab accounts for recurring Selank orders.
Storage & Handling Notes
Store lyophilized Selank at -20°C. Once reconstituted, minimize freeze-thaw cycles by aliquotting into single-use volumes.
Frequently Referenced Alongside
Selank is sometimes ordered alongside Epithalon as part of a broader specialty-compound research program, though the two serve entirely different research purposes — anxiolytic/cognitive research versus cellular senescence — and aren't mechanistically related.
Frequently Asked Questions
What is Selank used for in research?
Selank is studied in anxiolytic and cognitive-performance research models, used as a comparison point in stress-response pathway studies.
What is Selank derived from?
Selank is a synthetic analog of tuftsin, a naturally occurring immunomodulatory peptide fragment of the IgG heavy chain, modified for improved research stability.
What purity does Northline guarantee for Selank?
Every lot is independently verified at ≥99% purity by reverse-phase HPLC, with mass-spectrometry sequence confirmation.
Do you ship Selank internationally?
Yes, we ship to research institutions across the USA and internationally with cold-chain packaging on every order.
How should Selank be stored?
Store lyophilized Selank at -20°C. Minimize freeze-thaw cycles once reconstituted.
Is Selank related to Semax or other nootropic peptides?
Selank is structurally and mechanistically distinct from Semax — Selank is a tuftsin analog, while Semax is derived from ACTH. They're sometimes discussed together in cognitive-research literature but aren't interchangeable.