TB-500 (Thymosin β4 fragment)
C38H68N10O14889.02 g/mol
From $52.00
Best value: $8.80 per mg
The acetylated actin-binding fragment (residues 17–23) of thymosin β4.
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Applies to any mix of sizes of this compound. Discount shows in your cart.
- Batch RP-TB5-2610, lab report sent on request
- Sealed vial, discreet unbranded packaging
- Order now and it ships on Monday
For in-vitro laboratory research only. Not for human or veterinary use.
Structure
- Hydrophobic
- Polar
- Acidic
- Basic
- Modified / non-standard
Specifications
| Also known as | Ac-LKKTETQ, Thymosin β4 (17–23) |
|---|---|
| Sequence | Ac-Leu-Lys-Lys-Thr-Glu-Thr-Gln N-terminal acetylation |
| Molecular formula | C38H68N10O14 |
| Molecular weight | 889.02 g/mol |
| CAS number | 885340-08-9 |
| Purity specification | ≥99.0% (HPLC) |
| Form | Lyophilized powder, 3 mL glass vial |
| Storage | −20 °C, sealed, protected from light |
Stock solution calculator
Work out the concentration of an in-vitro stock solution from the vial contents and the solvent volume, using this compound’s molecular weight.
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Uses MW 889.02 g/mol and gross fill weight. For quantitative work, correct for net peptide content.
Batch history
Every batch we have released for this compound, with the report for each. Older reports stay available so you can compare lots.
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Research overview
TB-500 is a synthetic seven-residue peptide, Ac-LKKTETQ, corresponding to the central actin-binding region of thymosin β4, a 43-residue protein that sequesters monomeric G-actin and is abundant in most cells.
The full-length protein has been studied for its roles in cell migration, angiogenesis and wound repair. The 17–23 fragment is used in research to isolate the activity associated with this actin-binding motif in cell-migration and wound-healing models.
Note that TB-500 is the fragment, not full-length thymosin β4. Supplied as a lyophilized acetate salt.




