Biochemical Laboratory PEG MGF Polypeptide Custom Sample Supply

1. Basic Product Overview
PEG‑MGF, full name Pegylated Mechano Growth Factor, also known as MGF‑PEG, is a structurally optimized synthetic polypeptide compound derived from the IGF‑1Ec splice variant through artificial chemical synthesis and pegylation modification. It is an essential tool‑type peptide material in the field of life science and biomedicine basic research, featuring accurate molecular sequence, stable peptide chain conformation, and reliable chemical and physical characteristics. The entire production process follows strict standardized industrial specifications, including raw material selection, directional peptide chain synthesis, cleavage and desalting, multi‑step impurity removal, precise PEG conjugation, purification, and high‑end vacuum freeze‑drying. These processes effectively ensure the high purity, low impurity content, and superior stability of the finished product. Each batch undergoes comprehensive quality control, including HPLC purity analysis, mass spectrometry molecular weight confirmation, moisture content determination, pH value verification, and foreign substance inspection, ensuring all technical indicators meet international research‑grade biochemical reagent standards.
2. Core Product Characteristics
This PEG‑MGF lyophilized peptide powder possesses multiple professional advantages tailored for laboratory scientific research. First, it has ultra‑high purity and extremely low impurity levels. The multi‑level purification system thoroughly removes synthesis by‑products, incomplete peptide fragments, unreacted PEG residues, and other contaminants, ensuring stable purity ≥98% per batch, minimizing experimental interference and improving the accuracy and reproducibility of research data. Second, the advanced vacuum freeze‑drying technology locks the molecular structure perfectly, effectively preventing peptide denaturation, degradation, and activity loss caused by high temperature, humidity, long‑term storage, or oxidative environments, significantly enhancing storage stability. Third, the PEG‑conjugated structure provides excellent water solubility and solution stability. The product dissolves rapidly and completely in sterile water, bacteriostatic water, and common laboratory buffer solutions; the reconstituted solution is clear, transparent, and free of turbidity, precipitation, or suspended particles, facilitating the preparation of experimental working solutions at different concentrations. Additionally, no fillers, preservatives, or auxiliary additives are introduced during production, maintaining pure biochemical properties with minimal batch variation and high experimental compatibility.
3. Scientific Research Application Scope
As a high‑standard research‑grade biochemical reagent, PEG‑MGF synthetic peptide is widely utilized in various basic research fields of life science, molecular biology, and biomedicine. It is mainly applied to in vitro cell culture systems, polypeptide molecular structure research, peptide‑polymer conjugate analysis, protein‑peptide interaction studies, cell signaling pathway exploration, biochemical reaction mechanism investigation, and structure‑activity relationship analysis of bioactive peptides. This product is suitable for daily experimental research in university laboratories, professional research institutes, biopharmaceutical R&D centers, and industrial biotechnology laboratories. All application scenarios are strictly confined to indoor in vitro laboratory scientific research; any non‑research‑related extended use is prohibited.

• All experimental operations must be performed in a standard sterile, dust‑free laboratory environment. Operators shall wear complete personal protective equipment, including lab coat, dust‑proof mask, safety goggles, and nitrile gloves, to avoid inhalation of powder dust, accidental ingestion, or direct skin contact. Before opening the vial, allow the sealed product to equilibrate naturally at room temperature to prevent condensation‑induced moisture absorption and peptide deterioration. For reconstitution, disinfect the rubber stopper with 75% alcohol, then slowly sterile solvent along the inner wall of the vial; do not pour directly onto the lyophilized powder to prevent molecular denaturation and excessive foaming. After solvent addition, let stand briefly, then swirl the vial gently and uniformly until full dissolution. Do not shake vigorously or vortex at high speed, as this may damage the intact molecular conformation of the peptide‑PEG conjugate. The reconstituted solution should be clear and homogeneous without visible impurities before use in subsequent experimental preparation and analysis.

• 1. PEG‑MGF lyophilized peptide powder is sensitive to high temperature, humid air, strong light, and oxidative conditions. For long‑term preservation, unopened original products must be fully sealed, stored in a dry, dark, well‑ventilated clean environment at a constant low temperature of ‑20°C, which can maintain stable chemical properties and complete molecular structure for an extended period. For short‑term use within one month, storage at 2–8°C in a refrigerated environment is acceptable, away from heat sources and direct strong light. After opening and sampling, the remaining powder must be sealed immediately to isolate air and moisture, preventing moisture absorption, caking, oxidative degradation, and purity reduction. Reconstituted aqueous solutions exhibit limited stability; preparation before use is recommended. If temporary storage is necessary, seal and refrigerate at 2–8°C and use within a short period. Repeated freeze‑thaw cycles of diluted solutions are strictly prohibited to avoid structural damage and loss of peptide integrity. Under standard sealed low‑temperature storage conditions, the shelf life of unopened products is 24 months.

Core Business & Product Portfolio

• Therapeutic peptides: SS-31 (Elamipretide), Tirzepatide, Semaglutide, Retatrutide (RT20), etc.
• Functional peptides: GHK-Cu, TB500, KPV, NAD, Glutathione, etc.
• Custom peptide services: Custom synthesis of complex sequences, long-chain peptides (up to 200 amino acids) and cyclic peptides, as well as various modification services (N-methylation, unusual amino acid incorporation, etc.).

R&D & Manufacturing Strength

• Technical expertise: Mastery of core technologies including solid-phase peptide synthesis (SPPS), liquid-phase synthesis, advanced purification (HPLC) and strict structural characterization.
• Quality assurance: All products are produced in compliance with cGMP standards, with complete CoA, HPLC and MS reports to ensure batch-to-batch consistency and high purity (≥98%).
• Production capacity: Equipped with professional production bases in Guangzhou, supporting small-batch R&D samples to large-scale commercial production, with stable supply capacity.

Global Market & Service Philosophy

Vision