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- Thymosin β4 fragment
- Actin-binding
- CAS 885340-08-9
- ≥ 99.0% (RP-HPLC)
- Lyophilised powder, batch COA supplied
- Available in 10mg vials
Synthetic peptide fragment of thymosin beta-4. Supplied lyophilised for cell-based research.
Every UK order includes
- 99.0% HPLC purity, independently verified
- Batch documentation / COA with every order
- Priority shipping — UK & EU · international available
- Discreet, temperature-controlled packaging
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Free priority shipping
On all UK orders — discreet and tracked.
Worldwide shipping
We ship across the EU & internationally, tracked to your door.
24-hour processing
Orders placed before 12pm GMT ship the same day from our UK hub.
Delivery guarantee
Lost or damaged? We reship — no questions. Order with confidence.
Analytical data
Specifications,
verified.
Specifications for this compound, independently verified by HPLC and LC-MS before release.
| Property | TB500 |
|---|---|
| Full name | TB-500 (Ac-LKKTETQ, thymosin β4 fragment 17–23) |
| CAS number | 885340-08-9 |
| Molecular formula | C₃₈H₆₈N₁₀O₁₄ |
| Molecular weight | 889.02 g/mol |
| Purity (HPLC) | ≥ 99.0% (RP-HPLC) |
| Mass confirmation | Confirmed by LC-MS |
| Residual moisture | ≤ 5.0% (Karl Fischer) |
| Form | Lyophilised powder |
| Solubility | Bacteriostatic or sterile water |
| Storage | −20°C sealed and protected from light; 2–8°C once reconstituted |
| Half-life | Not established in published literature |
About this peptide
TB500
TB-500 is supplied as a laboratory research material for qualified analytical and in-vitro research environments.
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01 Actin-binding fragment
The N-acetylated heptapeptide Ac-LKKTETQ, corresponding to residues 17–23 of thymosin β4 — the region responsible for actin binding.
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02 Short synthetic sequence
Seven residues at 889.02 g/mol, an order of magnitude smaller than the full 43-residue parent protein.
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03 Identity confirmed
Sequence verified by mass spectrometry, purity by reverse-phase HPLC, on every batch.
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04 Research material
Supplied lyophilised at −20°C with a batch certificate of analysis, for analytical and in-vitro use only.
FAQ
Before you order.
Anything not covered here, ask us directly — replies within one working day.
Is a COA included with my order?
Yes. Every vial ships with a certificate of analysis tied to the lot number printed on its label, covering identity by mass spectrometry and purity by HPLC. Retained samples are held so a batch can be re-tested.
How is the product shipped?
Lyophilised powder is stable at ambient temperature in transit and ships in discreet, tracked packaging. UK and EU orders are sent on a priority service; international destinations are quoted at checkout.
How should the vial be stored on arrival?
Keep it sealed at −20°C, protected from light. Lyophilised material is stable for months under those conditions. Once reconstituted, store at 2–8°C and use within the window stated on the certificate of analysis.
Who is this product for?
Qualified researchers and laboratories only. It is supplied strictly as an analytical and in-vitro research material, and is not a medicine, a supplement or a veterinary product.
Is this the full thymosin β4 protein or the fragment?
The fragment. TB-500 is the acetylated 17–23 heptapeptide, CAS 885340-08-9. Full-length thymosin β4 is a separate 43-residue protein under CAS 77591-33-4, and the two are often confused by suppliers — check the CAS number on the certificate of analysis against what a protocol expects.
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