NA Selank

Description

NA Selank is a synthetic peptide reagent stocked for laboratory work in neuroscience and behavioural pharmacology models, and it sits in the cognitive and neuro section of our research peptides Canada catalogue. It arrives as a lyophilized powder in a sealed vial, ready for reconstitution in a solvent of the investigator’s choosing, and every lot ships with independent analytical documentation so you can record what you actually received rather than what a label asserts.

Overview

NA Selank is the N-acetylated form of Selank, itself a synthetic analogue of the endogenous immunopeptide fragment tuftsin. The acetyl modification at the N-terminus is a standard medicinal-chemistry approach to blocking exopeptidase access at the free amine, which is why acetylated analogues are frequently the version chosen when a protocol involves incubation in biological matrices or extended handling time. It is supplied as a white lyophilized cake or powder, sealed under vacuum in a glass vial, available in 10mg and 50mg fills and as single vials or boxes of ten. Nothing is added — no excipients, carriers or preservatives are declared — so reconstitution volume, buffer and final working concentration are entirely under the researcher’s control. Each production lot is submitted to Janoshik Analytical, an independent third-party laboratory, for purity determination by HPLC and identity confirmation by mass spectrometry, and the resulting certificate of analysis is matched to the batch you receive.

What it is known for

Buyers know NA Selank as the acetylated variant they reach for when the unmodified peptide is not stable enough for the assay window, and they know this listing for its paperwork. The certificate of analysis is batch-matched and issued by an outside lab rather than generated in-house, which means the purity and identity figures on file are verifiable and defensible when a supervisor, grant reviewer or journal reviewer asks where the material came from. Domestic Canadian dispatch is the other reason it gets chosen: the vial does not sit in a customs queue thawing while a broker requests documentation, and tracking is available for the whole journey.

Key features

• N-acetylated peptide structure — The blocked N-terminus resists aminopeptidase cleavage, so the reagent holds up better through incubations and handling steps where the unmodified peptide would degrade faster.
• Third-party HPLC purity testing (Janoshik) — You get an independent number for what fraction of the material is the target peptide, so unexpected assay results can be traced to biology rather than to an impure reagent.
• Mass spectrometry identity confirmation — Confirms the molecular mass corresponds to the intended sequence — the check that catches a mislabelled or substituted vial before it reaches your bench.
• Batch-matched certificate of analysis — The document belongs to the lot in your hand, not a representative sample from months ago, so it stands up in a lab notebook or method section.
• Lyophilized format, sealed vial — Removing water dramatically slows hydrolysis and aggregation, so the powder tolerates shipping and cold storage far better than a pre-mixed solution and lets you set your own concentration.
• 10mg and 50mg fill options — Pilot work can start on a small vial without committing budget, while established protocols can standardize on the larger fill and cut the number of reconstitution events.
• Boxes of ten — A single lot across ten vials removes batch-to-batch variability as a confounding variable in longer study series and simplifies reordering.
• Cold storage and tracked domestic dispatch — The material is held cold before it ships and moves within Canada under tracking, so transit is short and you know when to be present to receive and refrigerate it.

Benefits

• Analytical claims you can verify — purity and identity come from an outside laboratory, not a supplier’s own bench
• Reagent-driven variability is documented rather than assumed, which makes results easier to reproduce and defend
• No excipients to account for, so your buffer system and working concentration are yours to define
• Shorter, tracked domestic transit instead of an international shipment with unpredictable customs delays
• Scale from a single 10mg pilot vial to ten-vial boxes on one lot as a protocol matures

Specifications

Typical applications

• In-vitro neuroscience and cognitive research models
• Comparative studies against unmodified Selank or related tuftsin-derived peptides
• Peptide stability and degradation work where N-terminal modification is the variable of interest
• Analytical method development and reference work using a documented, MS-confirmed peptide
• Preliminary screening assays in academic, biotech and contract research settings

Important information

• Research use only. This product is not a drug, supplement, food or cosmetic. It is not intended to diagnose, treat, cure or prevent any disease and is not for human or veterinary use, ingestion or administration.
• Store the sealed lyophilized vial cold and protected from light and moisture. Bring it to room temperature before opening so condensation does not settle on the cake.
• Reconstitute in a solvent appropriate to your protocol and downstream assay. Add the solvent gently down the vial wall rather than directly onto the cake, and swirl instead of shaking to limit shearing and foaming.
• Once in solution, peptides are far less stable than the dry powder. Prepare working volumes you will use, keep the reconstituted material cold, and avoid repeated freeze-thaw cycles by aliquoting.
• Request or download the certificate of analysis for your lot and record the batch number in your notebook alongside the results it produced.
• Confirm the size and format you need before ordering — 10mg and 50mg fills and single-vial versus ten-vial boxes are separate options on this listing.

Common questions

What is the difference between NA Selank and Selank?

NA Selank is the N-acetylated form. Acetylating the N-terminal amine blocks the site that aminopeptidases recognize, which is the usual reason a researcher selects an acetylated analogue over the parent peptide when handling time or matrix exposure is a factor in the protocol.

How do I get the certificate of analysis?

A batch-matched COA is available for the lot you receive. It reports HPLC purity and mass spectrometry identity as determined by Janoshik, an independent analytical laboratory, so the figures are not self-reported.

Does it arrive as a solution or a powder?

A lyophilized powder in a sealed vial. Nothing is pre-mixed, so you select the solvent, the volume and the final concentration your assay calls for.

Which size should I order?

A 10mg single vial suits pilot runs and method development. The 50mg fill and the ten-vial boxes make sense once a protocol is settled — a box gives you multiple vials from one lot, which removes batch variation from a longer study.

How is it shipped?

It is held cold and dispatched from within Canada with nationwide tracking, in discreet packaging. Domestic transit avoids the customs holds that can extend an international peptide shipment.

Can this be used in humans or animals?

No. It is sold strictly for in-vitro laboratory research by qualified personnel. It is not a drug, supplement or veterinary product and must not be ingested or administered.

In summary

NA Selank supplied as a lyophilized vial in 10mg or 50mg, with independent HPLC purity and MS identity results tied to the specific lot you receive, and dispatched cold and tracked from within Canada. Choose your fill size and vial count above, and keep the batch-matched COA with your records.