Shop high-purity TB-500 at Eternal Peptides, the trusted source for verified research compounds in the USA. This synthetic Thymosin Beta-4 analogue is synthesized to a standard of ≥99% purity, with every batch rigorously tested and certified by Janoshik Analytical. Order today for fast, secure US shipping and free Priority delivery on all orders over $200.

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 bacteriostatic water and approved research buffers

Batch: EP-250421-TB10

Handling & Storage Guidelines

Store TB-500 vials (lyophilized form) at frozen temperatures, ideally at –4°F to –112°F (–20°C to –80°C), and protected from light and moisture to preserve stability.

When reconstitution is required, use bacteriostatic water and introduce the solvent gently to avoid foaming or agitation. Ideally, you should aliquot reconstituted solutions into single-use volumes to minimize repeated freeze–thaw cycles, which may affect peptide integrity.

Short-term working solutions may be stored refrigerated at 36°F to 46°F (2°C to 8°C) for limited durations, while long-term storage should remain frozen. All handling should follow standard laboratory safety practices and institutional protocols.

COA / Quality Assurance

Eternal Peptides provides a Certificate of Analysis (COA) for every TB-500 production lot to support transparency and research reproducibility. COAs typically document peptide identity confirmed by analytical methods such as HPLC and/or mass spectrometry, verified purity levels, and testing for sterility and endotoxin content where applicable.

Additional data may include heavy metal screening and recommended storage conditions. All analytical testing is performed by independent third-party laboratories, usually Janoshik, to ensure reliable and unbiased verification.

Check out the COAs on our Lab Tests page or request additional safety and compliance information from our support team.

Legal 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.

The safety and efficacy of TB-500 in humans have not been established. As the purchaser, you are solely responsible for ensuring compliance with all applicable local laws, regulations, and institutional biosafety or research-use policies.

Any misrepresentation of intended use or diversion from legitimate research applications may result in regulatory action or legal consequences.

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TB-500 (10mg) COA

Product COA

Product: TB-500 (10mg)

Batch: EP-250421-TB10

Expiration: 04/21/2027

TB-500