Content equals the label
Purity (%) and content (the actual amount delivered) are not the same thing. We document both, so the amount on the label is the amount you receive — no quiet shortfalls.
B2B Documentation Support
Use this page to align sourcing files, quotation scope, packaging, and buyer-side review before comparing supplier options.
Selank heptapeptide as a 30mg high-fill lyophilized vial for qualified B2B sourcing, with batch COA, custom fill discussion, and documentation review.
Key Review Snapshot
Why buyers trust WUMO
In this market, “99% pure” is often quoted while the amount actually delivered is far less. We keep purity and real content separate, and put both on paper — so Selank 30mg Lyophilized Peptide Vial is backed by documents you can check.
Research peptide line — typical purity >99.3–99.4%, every batch MS-checked before release.
Purity (%) and content (the actual amount delivered) are not the same thing. We document both, so the amount on the label is the amount you receive — no quiet shortfalls.
Identity and quality are confirmed by batch documentation — COA, plus HPLC / MS where applicable — before material is released.
Ingredient identity (INCI / CAS), specification sheet and SDS are available for review. Match the documents to your quoted batch before you commit.
Documents Available
COA
Batch-level quality summary for buyer-side file review.
Request this file through the inquiry path below.
HPLC
Purity profile reference for the quoted project or batch where available.
Request this file through the inquiry path below.
MS
Identity confirmation support for documentation review where available.
Request this file through the inquiry path below.
SDS
Safety document requested for internal purchasing and handling review.
Request this file through the inquiry path below.
Spec
Product or packaging specification reference for quotation alignment.
Request this file through the inquiry path below.
Overview
B2B Review Guide
Selank is a heptapeptide, Thr-Lys-Pro-Arg-Pro-Gly-Pro, supplied as a lyophilized research peptide in a 30mg vial format for qualified B2B sourcing projects. This page describes sourcing and analytical documentation only; it does not describe biological action, end-user application, or product performance.
In electrospray mass spectrometry a peptide of this size will usually appear in more than one charge state — for example the singly and doubly protonated ions. When more than one charge state deconvolutes to the same molecular mass, that is an internal consistency check on the assignment: it supports the molecular-mass result and makes a misread single peak less likely.
It is worth being clear about the limit, though. Charge states of the same analyte are not independent measurements, and molecular mass on its own does not establish peptide sequence or full structural identity. An isobaric compound or a sequence isomer can share the same mass. Where sequence confirmation matters to a project, that is a separate analysis and should be requested as one.
The practical check on any identity record stays the same: take the molecular weight the document states and confirm the ions shown reconcile to it. If they do not, ask for the record to be re-issued before ordering rather than after.
A batch-specific COA is issued for the batch being supplied and states the RP-HPLC and mass-spectrometry results for that batch. Purity and peptide content are separate specifications — see what a 10mg vial actually contains for the distinction and what a per-vial claim needs behind it.
Karl Fischer water content, counter-ion form, and appearance are not part of the standard vial COA scope and are arranged per project where a buyer specification requires them. Ask for the COA of the batch being quoted, and check that the batch identifier on it matches the vial label.
This page is for qualified B2B technical evaluation and business-side documentation review only. Material is supplied for research and laboratory use. It is not intended for individual purchase, consumer use, or product-use guidance, and WUMO does not provide medical guidance or outcome claims. Final use, importation, labeling, and local compliance are the buyer's responsibility.
It supports the molecular-mass assignment for the supplied batch. It does not by itself establish peptide sequence — where sequence confirmation matters, request it as a separate analysis.
30mg per vial is the standard fill on this page; other fill quantities and vial formats are set per project.
No. Purity describes how clean the material is; content describes how much peptide a given fill holds. They are separate specifications with separate documents behind them.
Company and business type, destination market, intended business use, required documentation package, target fill quantity and estimated volume, packaging preference, and required timeline.
OEM / Private Label
For finished lyophilized peptide vials with custom labels and packaging -- covering MOQ, sample or pilot evaluation, and batch documentation such as COA, sterility, and endotoxin reports -- see our private label peptide vial (OEM / ODM) service.
Use this form for pricing, technical files, sample requests, or project discussion for this product.
Need COA, SDS/MSDS, or specifications? Choose "Technical document request" in the inquiry form or mention the file name in your message.