HPLC purity
Reverse-phase HPLC with UV detection; purity target reported per lot with related-substance reporting on request.
PE-22-28HPLC ≥ 99%MS confirmed5mg / 10mg
Vial illustrations reflect supplied lyophilized format. Distribution scope and destination market confirmed before invoicing.
| Compound | PE-22-28 |
|---|---|
| CAS number | 1801959-12-5 |
| Molecular formula | C35H55N11O9 |
| Molecular weight | 773.9 g/mol |
| Sequence | Gly-Val-Ser-Trp-Gly-Leu-Arg (GVSWGLR) |
| Form | Lyophilized powder, glass vial |
| Purity target | ≥ 99% by HPLC |
| Vial formats | 5mg / 10mg |
| Documentation | Batch-linked COA + HPLC chromatogram + MS identity record for every production lot |
| Distribution scope | Research use, worldwide |
| Storage | Store lyophilized powder at -20°C, protected from light and moisture; stable long-term when sealed. After reconstitution, keep at 2-8°C and use within a short period. Avoid repeated freeze-thaw cycles. |
MOQ & lead time
| Tier | Quantity | Lead time |
|---|---|---|
| OEM lot | 50 kits (500 vials) | 3–7 days |
| Production lot | 500–1,000 vials | 10–14 days |
| OEM repeat | 1,000+ vials | 14–18 days, scheduled |
Supplied as a research-use peptide. Every quote confirms current-batch COA, purity, destination market and buyer track before invoicing.
Overview
About PE-22-28.
PE-22-28 is a seven-residue peptide corresponding to residues 22-28 of spadin, the endogenous sortilin-derived peptide, and is often called "mini-spadin." It acts as a selective blocker of the TREK-1 (TWIK-related potassium) channel, a two-pore-domain K+ channel studied as a target in neurogenesis, synaptic-signaling, and mood-related preclinical research.
Documentation
Batch documentation support for PE-22-28 lots.
batch-linked COA, HPLC chromatogram and MS identity record for every production lot. Distribution scope confirmed before invoicing.
MS identity
Mass spectrometry identity confirmation against the PE-22-28 reference profile.
Lot traceability
Compound prefix and lot serial printed on the vial label and repeated in the document pack and carton.
FAQ
PE-22-28 — frequently asked by B2B buyers.
What exactly is PE-22-28?
PE-22-28 is a synthetic heptapeptide (sequence GVSWGLR) corresponding to residues 22-28 of spadin, a sortilin-derived peptide, and is sometimes called mini-spadin. In preclinical research it is characterized as a selective TREK-1 potassium-channel inhibitor. All material is supplied strictly for laboratory and research use.
What purity and documentation do you provide?
Every production lot includes a batch-linked COA including RP-HPLC purity target (≥99%; actual result shown in lot documents) and mass-spectrometry identity confirmation matching the C35H55N11O9 / ~773.9 g/mol profile. Additional data such as residual-solvent, water-content, or endotoxin (only if specifically ordered and tested) testing can be provided on request for OEM programs.
What vial size and MOQ are available?
Standard catalog formats are 5 mg and 10 mg lyophilized vials, with a minimum order of 50 kits (500 vials).
Can you private-label or customize PE-22-28?
Yes. We support OEM and private-label programs including custom vial fill, labeling, and packaging. Analogs and sequence modifications built on the GVSWGLR core can be scoped on RFQ, subject to feasibility review.
How is PE-22-28 shipped and handled for compliance?
Lyophilized material ships with documentation identifying it as a research-use-only chemical, not for consumer or veterinary use. Cold-chain or ambient shipping is selected by destination and transit time, and export paperwork is prepared per the buyer's jurisdiction.
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