Cortagen Powder is a synthetic tetrapeptide with the sequence Ala-Glu-Asp-Pro, often written as AEDP. It is made by peptide synthesis, purified by HPLC, and then freeze-dried into a white or off-white powder. Unlike crude cortex extracts or mixed peptide materials, this product has a defined sequence and clear molecular identity. Its background is often discussed together with Cortexin-related peptide research, but it is supplied as a single synthetic AEDP peptide for controlled laboratory use.
This AEDP tetrapeptide is mainly used in neurobiology-related research, brain cortex peptide studies, short peptide regulatory models, and cellular response work. Because the chain is small and clearly defined, it is also suitable for studies where researchers need a simple peptide model instead of a complex protein or tissue-derived mixture. The product is for research use only and is not intended for clinical, diagnostic, or personal use.
Shaanxi Medibridge Biotech Co., Ltd. supplies research-grade synthetic peptides with raw powder supply, vial filling, custom label service, and batch document support. For this material, we focus on clear specifications, HPLC purity, sequence confirmation, careful lyophilized powder handling, and stable batch-to-batch supply for labs, distributors, and research material buyers.
COA
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Product Name |
CAS Number |
Batch Number |
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Cortagen powder |
335591-03-2 |
MB2601281030 |
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Manufacturer Date |
Analysis Date |
Expiry Date |
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2026-01-28 |
2026-01-29 |
2028-01-27 |
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Sample Qty Base |
Packing |
Test Method |
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2.68KGS |
10GS/bottle |
HPLC |
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Item |
Standard |
Results |
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Appearance |
White lyophilized powder |
Conforms |
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Identification (HPLC) |
Retention time consistent with reference standard |
Conforms |
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Peptide Sequence |
Ala-Glu-Asp-Pro (AEDP) |
Conforms |
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Molecular Formula |
C17H27N5O8 |
Conforms |
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Molecular Weight |
430.41 |
Conforms |
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Purity (HPLC) |
NLT 98.0% |
98.64% |
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Solubility |
Soluble in water |
Conforms |
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Water Content (Karl Fischer) |
NMT 5.0% |
2.26% |
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Acetate Content |
NMT 12.0% |
6.18% |
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Heavy Metals |
NMT 10 ppm |
Conforms |
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Related Substances |
NMT 2.0% |
Conforms |
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Microbial Limits |
Complies with laboratory reagent standards |
Conforms |
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Storage |
Store in cool & dry place. keep away from strong light and heat |
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Conclusion |
The batch conforms to the IN-HOUSE standard |
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Why This AEDP Tetrapeptide Stands Apart
This peptide is not usually viewed only by its purity number or powder form. Its more recognizable point is the AEDP sequence: Ala-Glu-Asp-Pro. It is a short chain, but it has a clear identity, a fixed molecular weight, and a research background linked with Cortexin-related peptide studies.
Many short peptides look similar on a basic specification sheet. The difference here is the way the sequence is built. Glu and Asp sit next to each other in the middle, giving the molecule two acidic residues in a very small structure. Proline at the end also makes the chain different from EDG, AEDL, or AEDR-type peptides. So this material is better described as a defined AEDP tetrapeptide, not just another research peptide powder.
For lab supply, this clear identity matters. The batch can be checked by HPLC and LC-MS, packed as lyophilized powder, and supplied in raw powder or vial form. That makes it easier to keep the product consistent from one order to the next.
The AEDP Sequence in Plain Terms
The AEDP sequence is short, but it has a clear shape on paper. Ala starts the chain with a small, simple side group. Glu and Asp sit in the middle, both carrying acidic side chains. Proline closes the sequence with a ring-like structure that makes it different from many other short peptide chains.
This is why AEDP should not be treated as just four letters. Compared with EDG, AEDL, or AEDR-type peptides, it has its own residue pattern and a more specific sequence identity. The two acidic amino acids give the molecule a clear chemical character, while the terminal proline makes the chain less ordinary than a simple linear peptide ending.
For research material supply, this defined sequence is also useful from a quality-control side. HPLC purity, LC-MS molecular weight confirmation, appearance, and moisture data can all be tied back to one fixed tetrapeptide structure. The final powder is small, water-soluble, and easier to describe than a mixed peptide extract.
Cortexin-Linked Research Background
Cortagen is often discussed in the same research field as Cortexin, but the two are not the same material. Cortexin is known as a peptide-based cortex-derived preparation, while Cortagen is a defined synthetic tetrapeptide built around the AEDP sequence.
This difference is important for product identity. A crude or mixed peptide material may contain many small fragments, but this product has only one clear sequence: Ala-Glu-Asp-Pro. That makes the material easier to describe, test, and reproduce from batch to batch.
In laboratory research, this background gives Cortagen a more specific position than a general short peptide. It is usually connected with brain cortex peptide studies, neurobiology models, and short peptide regulatory research. For supply work, the synthetic route also gives a cleaner way to control purity, molecular weight, appearance, and batch documents.
Research Direction: Brain Cortex and Short Peptide Models
This AEDP tetrapeptide is usually placed in brain cortex-related peptide research rather than general nutrition, cosmetic, or large protein studies. Its small size and fixed sequence make it easier to use in controlled laboratory models where researchers want to look at short peptide behavior, cellular response, and sequence-specific activity.
In neurobiology work, it may appear in studies linked with brain cortex peptides, nerve cell models, gene expression patterns, and peptide-related regulatory pathways. The focus is not on broad medical claims, but on how a defined short peptide can be observed in a clean experimental setting.
For this reason, the material is often more suitable for labs that need a simple AEDP peptide model instead of a complex tissue-derived mixture. The powder form, water solubility, and clear molecular weight also make it easier to prepare and record during research work. It is supplied for laboratory research use only.
Powder Form, Solubility and Handling
Cortagen is supplied as a white to off-white lyophilized powder. The freeze-dried form helps keep the peptide easy to weigh, pack, and ship in raw powder or small vial formats. It also gives the material a cleaner appearance for routine laboratory handling.
This AEDP peptide is soluble in water, and it can also be prepared with common laboratory buffer systems depending on the study design. Since the molecule is small and clearly defined, the preparation record is usually simple: powder weight, solvent type, concentration, batch number, and storage condition.
For storage, the powder is kept sealed, dry, and protected from light. Low-temperature storage is commonly used for long-term keeping. Once prepared as a solution, the material is usually handled in small portions to reduce repeated freeze-thaw cycles. The product is supplied for laboratory research use only.
Quality Points and Batch Records
For this AEDP tetrapeptide, the common quality records are usually built around sequence, purity, molecular weight, and powder condition. A typical batch document may include HPLC purity, LC-MS confirmation, appearance, water content, and basic storage information.
The sequence is short, so the quality check is more direct than many large peptide or mixed peptide materials. The HPLC profile shows the main purity level, while LC-MS helps confirm that the measured molecular weight matches the AEDP structure. Appearance and moisture data also help describe whether the lyophilized powder is suitable for normal lab handling.
For repeat orders, batch consistency is often more useful than broad marketing wording. Clear specifications, matching COA records, sealed packaging, and stable vial filling can make the material easier to manage for labs, distributors, and research material buyers. This product is supplied for laboratory research use only.
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Available Supply Formats
This material can be supplied as bulk raw powder or filled into small vials for research use. Common vial formats include 2mg, 5mg, 10mg, or other custom amounts based on project needs. Neutral packaging, private label service, and different vial sizes can also be arranged.
For raw powder orders, the material is packed in sealed containers with moisture protection. For vial filling, the peptide can be prepared in lyophilized form with clear labeling, batch number, specification, and storage information. This format is often used when buyers need easier handling, sample distribution, or repeatable small-unit supply.
As a Cortagen Powder supplier in China, Shaanxi Medibridge can support sample orders, bulk powder supply, custom peptide vial filling, and batch document preparation. COA, MSDS, HPLC data, and LC-MS confirmation can be provided according to the batch. The product is supplied for laboratory research use only.
Why Choose Shaanxi Medibridge
Shaanxi Medibridge Biotech Co., Ltd. supplies research-grade peptide materials with clear specifications and batch-based documentation. For this AEDP tetrapeptide, we can provide raw powder, small vial filling, custom label service, and flexible packaging for research material buyers.
Each batch can be supported with COA, HPLC purity data, LC-MS confirmation, and basic storage information. The powder is packed with moisture protection and handled as a lyophilized peptide material, so the appearance, purity, and batch records stay clear from production to shipment.
For labs, distributors, and peptide buyers, we focus on stable supply rather than broad claims. Small trial orders, repeat batches, custom mg/vial filling, and neutral packaging can be arranged according to project requirements. This product is supplied for laboratory research use only.
FAQ
Q: What is Cortagen Powder?
A: It is a synthetic AEDP tetrapeptide supplied as a lyophilized powder for laboratory research use.
Q:Is Cortagen the same as Cortexin?
A: No, it is a defined synthetic tetrapeptide, not a crude Cortexin extract or mixed peptide material.
Q: What is Cortagen used for in research?
A: It is commonly used in brain cortex-related peptide studies, neurobiology models, and short peptide regulatory research.
Q: What purity can you supply?
A:We usually supply research-grade material with HPLC purity NLT 98%, and higher purity can be discussed by batch.
Q: Can the label and mg per vial be customized?
A: Yes, vial size, mg/vial, label design, and neutral packaging can be arranged.
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