Description
TB-500 Research Peptide
TB-500, also known as Thymosin Beta-4, is a synthetic research peptide composed of a defined amino acid sequence. It is commonly used in controlled laboratory research involving peptide structure, signaling pathway analysis, peptide interaction dynamics, and structure-function characterization.
ResearchChemHQ supplies TB-500 in lyophilized powder form to support stability during shipping, storage, and laboratory handling. Each batch is produced for research-use-only applications and may be supported by batch-specific documentation through the RCHQ COA Library.
TB-500 is intended strictly for laboratory, analytical, and scientific research use only. It is not intended for human or animal consumption, medical use, diagnostic use, therapeutic use, dietary supplement use, cosmetic use, or compounding.
Chemical Information
Product Name: TB-500
Full Name: Thymosin Beta-4
Molecular Formula: C212H350N56O78S
Molecular Weight: 4963.49 g/mol
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
Appearance: Lyophilized powder
Purity: Batch-specific purity reported on COA
Storage Form: Lyophilized powder
Molecular Structure: Refer to the batch-specific Certificate of Analysis for structural and analytical details.
Research Applications
TB-500 may be used in controlled laboratory research settings for applications such as:
- Peptide-receptor interaction research and signaling pathway analysis
- Intracellular signaling cascade evaluation involving peptide ligands
- Structure-function research of Thymosin Beta-4-derived peptide sequences
- Cellular interaction modeling in controlled experimental systems
- Peptide stability and degradation profiling in assay-based environments
- Analytical evaluation of peptide sequence and structural characteristics
All research involving TB-500 should be conducted by qualified professionals using appropriate laboratory practices, documentation, and controlled research conditions.
Storage and Handling
Store lyophilized TB-500 according to proper laboratory storage practices.
- Keep lyophilized material in a cool, dry environment
- For long-term storage, maintain at -20°C / -4°F
- Once reconstituted, store at 2–8°C / 36–46°F
- Use promptly after reconstitution according to internal laboratory protocols
- Maintain aseptic handling practices
- Avoid repeated freeze-thaw cycles
- Protect from unnecessary light, heat, and moisture exposure
Storage conditions may affect peptide stability, so researchers should follow appropriate handling standards for lyophilized peptides.
Quality and Testing
ResearchChemHQ is committed to transparency and research-grade quality standards. TB-500 batches may be supported by third-party analytical testing and batch-specific documentation.
Testing may include verification of key quality markers such as:
- Purity
- Compound identity
- Quantity verification
- Sterility
- Endotoxin levels
Researchers can reference the corresponding Certificate of Analysis for batch-specific testing results.
Compliance Notice
TB-500 is sold strictly for research use only.
This product is not intended for human consumption, animal consumption, medical use, diagnostic use, therapeutic use, dietary supplement use, cosmetic use, or compounding.
This product has not been evaluated or approved by the FDA. Misuse of this product is strictly prohibited and may violate federal, state, or local laws.
By purchasing this product, the buyer acknowledges and agrees that it will be used only for lawful laboratory, analytical, and scientific research purposes by qualified individuals or institutions.


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