Testagen
$66.99
This material is supplied solely as a laboratory research article. Buyer is responsible for ensuring lawful purchase, handling, storage, and use. We do not provide administration or therapeutic guidance.
Quality Certificates
Independent third-party lab analysis (CoA) - from our own in-house brand.
Testagen - Synthetic Tetrapeptide (Lys-Glu-Asp-Gly), Research Reference Material
Analytical Identity
| Common name | Testagen |
|---|---|
| Amino-acid sequence | KEDG |
| Sequence (3-letter) | Lys-Glu-Asp-Gly |
| Residues | 4 |
| Molecular formula | C17H30N6O9 |
|---|---|
| Molecular weight | ~462.5 g/mol |
| Appearance | White to off-white lyophilized powder |
| Physical form | Lyophilized powder |
| Purity | Not less than 98% by HPLC (see lot-specific Certificate of Analysis) |
|---|---|
| Source | Synthetic |
| Catalog / SKU | TESTAGEN |
Testagen is supplied as a laboratory research reference material for in-vitro and laboratory research use only. Cataloged under SKU TESTAGEN, it is a fully synthetic linear tetrapeptide composed of four residues in the sequence Lys-Glu-Asp-Gly (single-letter KEDG), corresponding to the free N-terminal lysine, internal glutamic and aspartic acid residues, and a C-terminal glycine. The material is offered as a white to off-white lyophilized powder of synthetic origin, with no animal- or plant-derived starting materials in the peptide backbone assembly.
Analytically, Testagen is characterized by the molecular formula C17H30N6O9 and a monoisotopic-consistent average molecular weight of approximately 462.5 g/mol. The residue composition contributes one basic side chain (Lys, epsilon-amine), two acidic side chains (Glu gamma-carboxyl, Asp beta-carboxyl), and an unsubstituted glycine terminus, giving the sequence a net acidic character and a mixed polar profile relevant to reversed-phase HPLC retention, ion-exchange behavior, and aqueous solubility studies. This zwitterionic, hydrophilic peptide is well suited to use as a reference standard in identity confirmation workflows, including HPLC-UV, LC-MS, amino acid analysis, and Edman or MS/MS sequence verification.
Purity of the Testagen reference material is specified as not less than 98% by HPLC, with identity and purity documented on the lot-specific Certificate of Analysis, available on request. The CoA provides the analytical package expected for a characterization-grade tetrapeptide, supporting method development, calibration curves, system suitability checks, and comparability studies against in-house synthesized or extracted material.
Published scientific literature has examined Testagen (Lys-Glu-Asp-Gly) in preclinical research contexts, and it is provided here strictly as a chemical reference item for such laboratory investigations. PEPTIDE.Power makes no therapeutic, diagnostic, or efficacy claims regarding this material and provides no administration or dosing guidance. Testagen is not a drug, supplement, cosmetic, or food, and is not for human or veterinary use, injection, or ingestion. It is intended solely for qualified researchers working within appropriate laboratory settings.
Physical format
Supplied as a lyophilized (freeze-dried) powder in a sealed vial. A research reference material - not a finished product and not a delivery device. Net contents per unit are shown in the product options.
Certificate of Analysis
| Issuing laboratory | Analiza Białek |
|---|---|
| Analyte | Testagen |
| CAS Number | - |
| Lot / Batch | K12PP |
| Appearance | White to off-white lyophilized powder |
| Purity (HPLC) | 99% |
| Identity | Confirmed by HPLC and mass spectrometry |
Lot-specific COA available — contact [email protected] with your lot number.
Storage & handling
Store the sealed lyophilized powder at -20 C, protected from light and moisture. After reconstitution for laboratory use, keep cold and use promptly. Handle per standard laboratory practice; a Safety Data Sheet (SDS) is available on request.
Scientific references
The following are independent, peer-reviewed publications provided for reference. They describe third-party research and are not representations by POWER BIOTECH LLC regarding this product.
- Peptidergic regulation of expression of genes encoding antioxidant and anti-inflammatory proteins — https://pubmed.ncbi.nlm.nih.gov/20586316/
- Khavinson peptides as geroprotectors: molecular mechanisms and clinical perspectives — https://pubmed.ncbi.nlm.nih.gov/24青Title
- Short peptides and telomere length regulator hormone irisin — https://pmc.ncbi.nlm.nih.gov/articles/PMC7468819/
- Peptide regulation of gene expression and protein synthesis in bronchial epithelium — https://pubmed.ncbi.nlm.nih.gov/24024175/
- Effects of bioregulatory peptides on prostate cells in aging models — https://pubmed.ncbi.nlm.nih.gov/26390015/
- Peptide bioregulators: a new class of geroprotectors — https://pmc.ncbi.nlm.nih.gov/articles/PMC8533599/
Eligibility & terms of sale
This material is sold to qualified laboratory and research buyers for lawful research use only. It is not a drug, supplement, cosmetic, or food, and is not for human or veterinary use, injection, or ingestion. By purchasing, you confirm you are 21 or older and will use this material only for lawful laboratory research.
FAQ
What is the purity and how is it verified?
Not less than 98% by HPLC; see the Certificate of Analysis for the lot-specific result.
What form does it ship in?
A lyophilized powder in a sealed vial.
Can you advise on dosing, reconstitution, or administration?
No. We provide batch documentation, storage, and handling information only; we do not provide dosing, reconstitution, administration, or therapeutic guidance.
Is lot-specific documentation available?
Yes - contact [email protected] with your lot number for the Certificate of Analysis.
Related reference materials
Sold by POWER BIOTECH LLC, Casper, WY 82609, United States · [email protected]. FOR LABORATORY RESEARCH USE ONLY. Not a drug, supplement, cosmetic, or food. Not for human or veterinary use, ingestion, injection, or any in-vivo administration. Not evaluated by the FDA.
