Source comparison
TB500 Same as TB-500: Comparison Across Key Research Parameters
Researchers often wonder whether the naming variation signals differences in formulation, purity standards, or intended applications. The table below compares TB500 and TB-500 across parameters critical to experimental design and procurement decisions. Amino A
This comparison does not assign a generated winner or score.
- Researchers often wonder whether the naming variation signals differences in formulation, purity standards, or intended applications. The table below compares TB500 and TB-500 across parameters critical to experimental design and procurement decisions.
- Amino Acid Sequence
- Ac-Ser-Asp-Lys-Pro… (43 residues, positions 1-43 of Thymosin Beta-4)
- Identical sequence verified by mass spectrometry. No structural difference
- Molecular Weight
- ~4963.44 g/mol
- Exact match; any deviation >0.5% indicates contamination or degradation
- Mechanism of Action
- Binds G-actin to prevent polymerization; promotes angiogenesis, cell migration, wound healing
- Same receptor interactions and downstream signaling pathways
- Purity Standards
- Typically ≥98% by HPLC for research applications
- Vendor-dependent; verify COA regardless of name format
- Storage Requirements
- Lyophilized powder at -20°C; reconstituted solution at 2-8°C, use within 28 days
- Storage stability determined by formulation, not nomenclature
- Naming Origin
- Product code from early commercial suppliers; non-hyphenated format
- Hyphenated variant adopted for branding differentiation
- Typographic choice; no chemical or functional distinction