PX1 Research is a trusted USA Selank peptide supplier, delivering high-purity (≥99%) lyophilized Selank 10mg vials exclusively for laboratory research use. Every batch undergoes third-party verification including RP-HPLC purity analysis, mass spectrometry identity confirmation, and bacterial endotoxin testing. Orders dispatch same-day Monday through Friday from dispatch hubs in California and Arizona.
PX1 Research is a trusted USA Selank peptide supplier, delivering high-purity (≥99%) lyophilized Selank 10mg vials exclusively for laboratory research use. Every batch undergoes third-party verification including RP-HPLC purity analysis, mass spectrometry identity confirmation, and bacterial endotoxin testing. Orders dispatch same-day Monday through Friday from dispatch hubs in California and Arizona.
Selecting an analytical-grade Selank peptide supplier requires rigorous evaluation of batch purity, manufacturing standards, and independent documentation. PX1 Research synthesizes regulatory peptides engineered strictly for in vitro assays and preclinical laboratory investigation.
Every production lot is paired with a lot-specific Certificate of Analysis (COA) generated by an independent ISO/IEC-accredited testing laboratory. Researchers can inspect reverse-phase high-performance liquid chromatography (RP-HPLC) chromatograms and electrospray ionization mass spectrometry (ESI-MS) spectra before beginning trial protocols.
To protect peptide integrity during transit, lyophilized vials are packaged under inert argon atmospheric conditions and shipped via expedited domestic carriers with real-time temperature tracking. Browse our complete inventory of high-purity research peptides to support your institution's biochemical protocols.
Selank is a synthetic heptapeptide (sequence: Thr-Lys-Pro-Arg-Pro-Gly-Pro) derived from the naturally occurring immunomodulatory peptide tuftsin. Extended at its C-terminus with a Pro-Gly-Pro tripeptide motif, Selank was engineered to enhance metabolic stability and resistance to enzymatic degradation by serum peptidases.
In preclinical neuropeptide models, investigators evaluate Selank for its interactions with central neurochemical pathways. Research indicates that Selank modulates GABAergic neurotransmission by altering GABA-A receptor affinity, while simultaneously modulating serotonergic gene expression and neurotrophin signaling cascades.
Additionally, due to its structural heritage from tuftsin, researchers utilize analytical Selank 10mg vials to measure immune-signaling responses, specifically looking at interleukin expression, macrophage activity, and peripheral cytokine balance in animal tissue models. To explore related synthetic neuropeptides, review our technical breakdown on Semax 10mg vials.
Because synthetic heptapeptides can accumulate truncated sequence variants or residual reagents during solid-phase peptide synthesis (SPPS), vetting a prospective Selank peptide vendor requires verifying strict quality benchmarks. Qualified academic and private laboratories rely on the following explicit criteria:
1. Purity Verification (RP-HPLC): Ensure the vendor provides full-scale chromatograms demonstrating a main peak integration of ≥99.0%. Avoid suppliers who report estimated purity without showing baseline resolution.
2. Sequence Confirmation (Mass Spectrometry): ESI-MS or MALDI-TOF mass spectrometry must confirm the theoretical molecular weight of Selank (751.9 g/mol) without unexplained mass spectral peaks indicative of deleted amino acid residues.
3. Bacterial Endotoxin Testing: Assays destined for cellular or tissue cultures must be verified for low endotoxin levels via Limulus Amebocyte Lysate (LAL) testing, ideally showing <0.01 EU/mg.
4. Domestic Synthesis and Handling: USA-based manufacturing ensures strict adherence to cGMP-aligned synthesis protocols, minimizing batch-to-batch variance caused by unmonitored overseas imports.
5. Transparency and Traceability: Each vial must possess a lot number that directly corresponds to downloadable analytical data accessible through a public database or customer portal.
6. Expedited Logistics: Neuropeptides are sensitive to extended thermal exposure. Fast domestic handling prevents degradation during transit. Learn more about our technical operations in the PX1 Research knowledge center.
Navigating the secondary market for regulatory peptides presents significant risks if proper vendor due diligence is neglected. Laboratories frequently encounter vendors selling sub-standard materials that compromise experimental reproducibility.
A primary red flag is any supplier operating without lot-specific COAs. Generic, static certificates that lack matching lot numbers, testing dates, or lab analyst signatures often indicate batch blending or unverified grey-market sourcing.
Be wary of vendors offering dosing instructions, clinical administration advice, or therapeutic recommendations. Compliant vendors maintain strict laboratory-use boundaries. Promising therapeutic outcomes or selling non-lyophilized liquid formulations for human use violates safety guidelines and signals poor regulatory compliance.
Finally, scrutinize vendors with opaque contact details or lack of physical dispatch locations within the United States. International shipments often endure uncontrolled customs delays and extreme temperature shifts, leading to peptide hydrolysis. Review our verified fulfillment protocols by visiting our guide on sourcing research peptides safely.
To support rigorous quantitative protocols, PX1 Research adheres to precise chemical parameters for every batch of Selank produced. Our quality control benchmark guarantees high signal-to-noise ratios in bioanalytical testing.
Parameter Benchmark:
• Chemical Formula: C33H57N11O9 • Molecular Weight: 751.9 g/mol • CAS Number: 116539-59-4 • Purity Grade: ≥99.0% by RP-HPLC • Counterion: Trifluoroacetate (TFA) salt or Acetate salt (lot specified) • Form: White to off-white lyophilized cake • Solubility: Freely soluble in sterile water or phosphate-buffered saline (PBS)
Researchers seeking to obtain analytical material can directly order 10 mg vials of Selank with full chain-of-custody documentation attached.
Proper reconstitution and storage procedures are critical to maintaining the structural integrity of Selank in experimental environments. Lyophilized peptides are susceptible to hydrolysis and aggregation if handled improperly upon arrival.
Upon receiving lyophilized Selank, vials should be stored immediately at -20°C for short-term preservation or -80°C for long-term storage. Avoid frequent freeze-thaw cycles by aliquoting working stock immediately after reconstitution.
For reconstitution, clear the stopper with an antiseptic wipe and introduce sterile bacteriostatic water or laboratory-grade sterile saline down the inner glass wall of the vial. Allow the diluent to dissolve the lyophilized cake slowly; gently swirl the vial without vigorous shaking or vortexing, which can induce shear stress and cause peptide denaturation. Explore our catalog of research peptides and reagents for complementary lab supplies.
In neurobiological research, Selank is frequently investigated alongside Semax, another synthetic regulatory heptapeptide. While both share a history of preclinical evaluation, their molecular targets and structural origins differ significantly.
Selank is structurally derived from tuftsin and exhibits strong regulatory actions across GABAergic systems and peripheral immune signaling cascades. Its primary interest in literature surrounds neuro-immune crosstalk, stress-response pathways, and neurotransmitter metabolic rates.
Conversely, Semax is an ACTH(4-10) analogue (Met-Glu-His-Phe-Pro-Gly-Pro) primarily investigated for its effects on brain-derived neurotrophic factor (BDNF) expression, TrkB signaling, and vascular endothelial growth factors. Comparative studies often evaluate both peptides in parallel to map distinct neuropeptide signaling pathways. Interested researchers can review our Semax peptide guide to compare experimental parameters.
PX1 Research supports university laboratories, contract research organizations (CROs), and private institutions requiring high-volume peptide synthesis. Our infrastructure supports batch consistency across small-scale trial runs up to multi-gram production lots.
Institutional buyers benefit from dedicated account management, custom vial configurations, non-standard fill volumes, and direct integration with organizational purchasing systems. Every wholesale batch undergoes identical third-party analytical testing to guarantee batch-to-batch reproducibility.
To submit a requisition order or inquire about volume tier discounts, visit our wholesale research peptides portal to speak directly with an account representative.
When purchasing from PX1 Research, your order is backed by a streamlined domestic supply chain optimized for speed and analytical integrity. We supply 10mg lyophilized Selank vials packaged in clear, glass crimp-sealed vials designed for sterile laboratory access.
Orders placed before 2:00 PM PST Monday through Friday dispatch the same day from our primary shipping hubs in California and Arizona. Every package features climate-conscious packaging and full domestic tracking details delivered immediately upon carrier scan.
Every shipped lot contains a physical or digital link to its lot-specific Certificate of Analysis, giving your team immediate access to HPLC chromatograms, mass spectrometry reports, and endotoxin assay validation. Secure your supply today by placing your order directly for Selank 10mg vials.
What should I look for in a selank peptide supplier?
Select a Selank peptide supplier that provides lot-specific third-party COAs including RP-HPLC purity results (≥99%), ESI-MS mass verification, and bacterial endotoxin testing. Confirm the vendor operates domestic US shipping hubs to prevent transit delays and clear regulatory boundaries restricting products strictly to laboratory research use.
How do I choose a reliable selank peptide vendor?
A reliable Selank peptide vendor offers complete analytical transparency, clear lot traceability, and batch-matched documentation. Avoid vendors making therapeutic or human dosing claims, and choose suppliers like PX1 Research that provide high-purity lyophilized vials shipped directly from California or Arizona facilities.
Is Selank available for laboratory research use only?
Yes. Selank provided by PX1 Research is strictly sold for in vitro laboratory assays, chemical analysis, and preclinical research applications. It is not intended, labeled, or synthesized for human consumption, therapeutic treatment, or clinical use.
How do I verify the COA from a Selank peptide supplier?
Match the batch number printed on your vial to the COA database provided by your supplier. A valid COA must feature an independent laboratory header, clear integration tables for RP-HPLC main peak purity, mass spectrum peak matching (751.9 g/mol), and endotoxin assay values.
What purity level is required for Selank in laboratory assays?
In vitro and in vivo research protocols typically require a minimum purity of 98.0%, with standard research assays preferring ≥99.0%. High purity minimizes signal noise and prevents confounding data caused by truncated peptide impurities or synthesis reagents.
How fast does PX1 Research ship Selank orders?
PX1 Research dispatches Selank orders placed before 2:00 PM PST the same business day (Monday through Friday). Shipments originate from dispatch hubs in California and Arizona, utilizing expedited domestic shipping with full tracking.
What is the recommended storage temperature for lyophilized Selank?
Lyophilized Selank should be stored at -20°C for standard short-to-medium term storage, or at -80°C for long-term preservation. Post-reconstitution, liquid solutions should be kept at 2°C to 8°C and used within short experimental windows to avoid hydrolysis.
What is the chemical molecular weight of Selank?
The theoretical molecular weight of Selank (Thr-Lys-Pro-Arg-Pro-Gly-Pro) is 751.9 g/mol. Mass spectrometry testing verifies this mass value to confirm full-length sequence integrity.
Does PX1 Research perform endotoxin testing on Selank?
Yes. Every production batch of Selank undergoes Limulus Amebocyte Lysate (LAL) bacterial endotoxin testing to confirm levels remain below strict laboratory research thresholds before distribution.
Can institutions purchase bulk Selank for large studies?
Yes. PX1 Research provides volume procurement and wholesale fulfillment for universities, CROs, and private research institutes. Volume options can be coordinated through our institutional catalog.
All products are sold strictly for laboratory and research use only. Not for human or veterinary use, diagnosis, treatment or consumption. Statements have not been evaluated by the FDA.