Research compound · 10mg vial · Lyophilised powder
TB-500
TB-500 (Thymosin Beta-4) is a synthetic peptide studied for its role in actin regulation, tissue repair, and cellular migration. Supplied as lyophilised powder in 10mg vials. Research use only. Not for human consumption.
TB-500 — Research Profile
Compound Overview
| CAS Number | 77591-33-4 |
| 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 |
| Molecular Formula | C₂₁₂H₃₅₀N₅₆O₇₈S |
| Molar Mass | 4,963.5 g/mol |
| Class | Polypeptide |
| Purity | ≥99% (HPLC verified) |
Scientific Background
TB-500 is a synthetic analogue of Thymosin Beta-4 (Tβ4), a naturally occurring 43-amino acid peptide found in virtually all human and animal cells. Thymosin Beta-4 plays a fundamental role in actin polymerisation and cytoskeletal organisation, processes that are central to cell migration, tissue repair, and wound healing. TB-500 corresponds to the active region of Tβ4 responsible for actin binding.
First identified in thymic tissue, Tβ4 is one of the most abundant and evolutionarily conserved peptides in the body. Research interest in TB-500 has grown substantially due to its involvement in multiple repair and regeneration pathways, particularly in cardiovascular, musculoskeletal, and ocular tissue models.
Research Areas
Musculoskeletal Repair
TB-500 has been studied extensively in preclinical models of muscle, tendon, and ligament injury. Research suggests it promotes satellite cell activation and myoblast differentiation, processes critical to skeletal muscle regeneration following trauma or disease.
Cardiovascular Research
Among the most cited areas of TB-500 research is its role in cardiac tissue. Studies in animal models of myocardial infarction have investigated its potential to promote cardiomyocyte survival, reduce apoptosis, and stimulate angiogenesis in ischaemic tissue.
Wound Healing & Skin Repair
TB-500 has demonstrated effects on keratinocyte and endothelial cell migration in wound healing models. Research has examined its ability to accelerate wound closure and reduce inflammatory markers at injury sites.
Neurological Research
Emerging studies have investigated TB-500 in models of central nervous system injury, including spinal cord trauma and traumatic brain injury, with findings suggesting roles in oligodendrocyte differentiation and axonal remyelination.
Ocular Research
TB-500 has been studied in corneal wound healing models, with research suggesting potential relevance to conditions involving damage to the ocular surface epithelium.
Quality & Testing
- Purity ≥98% confirmed by reverse-phase HPLC
- Identity verified by mass spectrometry
- Endotoxin tested (<0.1 EU/mg)
- Supplied as sterile lyophilised powder
Disclaimer
This product is intended for in vitro research and laboratory use only. It is not intended for human or veterinary use, nor for diagnostic, therapeutic, or cosmetic applications. By purchasing, you confirm that you are a qualified researcher with appropriate facilities and that the compound will be used solely for lawful scientific research purposes in accordance with applicable regulations.
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For research use only (RUO). Not approved for human consumption. Must be 21+ to purchase.



