Understand the source comparison
TB-4 vs TB4: Full Comparison
Amino acid length 43 residues 7 residues (fragment) TB-4 and TB4 are identical full-length sequences; TB-500 is a shortened synthetic analog Molecular weight ~4963 Da ~858 Da Weight difference confirms structural identity between TB-4/TB4 and distinguishes the
No winner is assigned.
This page preserves a source comparison for education. It does not add a rating, recommendation or clinical judgment.
- Amino acid length
- 43 residues
- 7 residues (fragment)
- TB-4 and TB4 are identical full-length sequences; TB-500 is a shortened synthetic analog
- Molecular weight
- ~4963 Da
- ~858 Da
- Weight difference confirms structural identity between TB-4/TB4 and distinguishes them from TB-500
- Mechanism of action
- Full actin sequestration + immune modulation + angiogenesis
- Identical to TB-4
- Actin sequestration only (limited immune/angiogenic effects)
- Full-length versions (TB-4/TB4) address broader regenerative pathways than the fragment
- Synthesis cost
- Higher ($180–240/50mg research grade)
- Lower ($80–120/50mg)
- Price parity between TB-4 and TB4 confirms they're the same compound; TB-500 costs less due to shorter sequence
- Stability in solution
- Moderate (refrigerate reconstituted solution, use within 14 days)
- Higher (stable up to 21 days refrigerated)
- No stability difference between TB-4 and TB4 nomenclature; fragment offers marginal storage advantage
- Research applications
- Tissue regeneration, myocardial repair, neuroprotection, immune modulation studies
- Acute wound healing, localized tissue repair, cell migration assays
- Naming convention (hyphen vs no hyphen) has zero impact on experimental application