PE 22-28 – High Purity Premium Active Peptide API

Product Overview PE 22-28 is a bioactive fragment peptide intercepted from VIP sequence, consisting of 7 amino acid residues. It retains the core functional domain of VIP, stably acts on VPAC receptors, delivers obvious anti-inflammatory, mucosal protection and oxidative stress relief effects, with smaller molecular weight, stronger cell penetration and lower metabolic clearance rate compared with full-length VIP. It will not cause systemic vasodilation side effects triggered by full-length VIP and features high application safety.

It is applied in laboratory research including inflammatory pathway research, intestinal/gastric mucosal injury repair, epithelial barrier protection, neuroinflammation intervention and fragment peptide pharmacodynamic comparison tests. It is extensively adopted in neuropeptide truncated fragment mechanism research and in vitro cell pharmacology experiments.

Adopting optimized solid-phase peptide synthesis and preparative HPLC refining technology, the product boasts excellent water solubility and stable biological activity after reconstitution with designated solvent. CAS Number: 1801959-12-5

Technical Specifications & Quality Standards

HPLC Purity: ≥99.0% Identity Test: HPLC verification + full mass spectrometry peptide sequencing, molecular weight fully matches theoretical standard value Appearance: Aseptic lyophilized white fine powder Strict CQA Quality Control: Full-item detection including residual organic solvents, heavy metal content, bacterial endotoxin, microbiological limits, peptide sequence integrity and moisture verification;

The entire production line follows standardized GMP management system, guaranteeing uniform quality among different batches.

Supply & Order Instructions

Production Capacity: Stable large-scale manufacturing available, supporting kilogram-level bulk procurement and small-volume trial sample orders

Lead Time: Bulk kilogram orders need one month advance reservation owing to multi-step synthesis and purification processes; sample orders enjoy shorter delivery cycle.

Quality Assurance

Each shipment batch is attached with a full official Certificate of Analysis (COA). The peptide maintains purity over 99.0% with intact biological activity; third-party independent laboratory re-inspection is acceptable for authenticity confirmation.

Payment Options

Alibaba Trade Assurance, PayPal, USDT, Bank Wire Transfer, Western Union

Core Advantages

Standard regular packaging: inner glass vial + outer carton, suitable for long-term light-proof sealed storage at -20℃ In-house professional peptide R&D laboratory team, providing customized specification repackaging and concentration dilution service

Confidential worldwide delivery equipped with dedicated low-temperature cold-chain packaging to avoid peptide degradation during transportation