Shop high-purity TB-500 at Eternal Peptides, a source for verified research compounds in the USA. This synthetic thymosin beta-4 analogue is synthesized to ≥99% purity, with every lot tested and certified by Janoshik Analytical. Full batch traceability, US-based support, and free Priority shipping on all orders over $200. For research use only.
TB-500 Peptide Characteristics
Property Description Name TB-500 (synthetic thymosin beta-4 analogue modeled on thymosin beta-4 activity) Sequence Ac-Ser-Asp-Lys-Pro-Asp-Met-Ala-Glu-Ile-Glu-Lys-Phe-Asp-Lys-Ser-Lys-Leu-Lys-Lys-Thr-Glu-Thr-Gln-Glu-Lys-Asn-Pro-Leu-Pro-Ser-Lys-Glu-Thr-Ile-Glu-Gln-Glu-Lys-Gln-Ala-Gly-Glu-Ser-OH Molecular Formula C212H350N56O78S Molecular Weight Approx. 5 kDa (may vary slightly depending on synthesis and analogue structure) Formats Lyophilized powder supplied in sealed glass vials Purity ≥99 % purity, verified by third-party testing, COAs available Solubility Lyophilized powder soluble in approved research buffers
COA and Quality Assurance
Eternal Peptides provides a Certificate of Analysis for every TB-500 lot. Each COA documents peptide identity by HPLC and/or mass spectrometry, verified purity, and, where applicable, sterility and endotoxin testing. Additional data may include heavy-metal screening and lot-specific storage conditions. All testing is performed by independent third-party laboratories, usually Janoshik, with results on the Lab Tests page.
Handling and Storage
Store lyophilized TB-500 at -4°F to -112°F (-20°C to -80°C) in a dry environment, protected from light and moisture. Keep the vial tightly sealed until required for laboratory research. If preparation of a working solution is necessary, use an appropriate sterile reconstitution solution or compatible laboratory buffer in accordance with validated laboratory procedures. Depending on the study requirements, prepared solutions may be maintained under refrigerated conditions at 36-46°F (2-8°C) for routine laboratory use or frozen for longer-term preservation. Where appropriate, aliquoting may be used to help maintain sample integrity by reducing repeated freeze-thaw cycles. Always follow institutional biosafety, laboratory handling, and disposal requirements.
Legal and Regulatory Disclaimer
Eternal Peptides sells TB-500 strictly for laboratory research use only. It is not approved for human or veterinary use and is not intended for clinical administration, therapeutic intervention, or diagnostic procedures of any kind. Its safety and efficacy in humans have not been established. The purchaser is solely responsible for compliance with all applicable laws and institutional biosafety or research-use policies.
Dr. Sony Sherpa, MBBS, MD
Medical author
Dr. Sony Sherpa holds a medical degree (MBBS, MD) and writes on peptide characterisation, chemical and structural data, and laboratory handling and storage. Her focus is on accuracy and fidelity to current published research, with all content presented for laboratory research use only. Read full profile