TB-500 · Thymosin Beta-4 fragment
| Classification | Synthetic peptide related to Thymosin Beta-4 |
|---|---|
| Solubility | Soluble in water and bacteriostatic water. |
| Reported half-life | Varies substantially depending on whether the material is the short fragment or full-length Tβ4. |
International orders have a 3-vial minimum per product. Case pricing shown is international; US warehouse case pricing may differ and is shown at checkout.
Note on nomenclature: "TB-500" is used in the research supply market to refer to two different things — the short N-terminal actin-binding fragment Ac-LKKTETQ (7 residues), and full-length Thymosin Beta-4 (43 residues, ~4963 g/mol). These are chemically distinct. Confirm with the certificate of analysis which material a given vial contains before designing an experiment around it.
The following describes contexts in which this compound appears in published laboratory literature. Nothing here is a claim of efficacy, safety, or suitability for any use in humans or animals.
| Lyophilized powder | Store lyophilized powder at -20 °C, sealed and protected from light. Stable for extended periods while dry. |
|---|---|
| After reconstitution | After reconstitution with bacteriostatic water, store at 2–8 °C and use within approximately 4 weeks. Avoid repeated freeze-thaw cycles. |
| Shipping | Ships at ambient temperature; lyophilized peptide is stable in transit. |
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| Vial | 1 vial (US) | 3 vials (Intl) | Case of 5 | Case of 10 | Stock |
|---|---|---|---|---|---|
| 5mg | $40 | $120 | $140 | $270 | 9 in Denver |
| 10mg | — | $174 | $200 | $390 | International |
$20 flat USA shipping · solutioning available at $10/vial · Denver stock ships within 1 business day of order confirmation.