TB-500 (Thymosin Beta-4 Fragment) — Research Grade
TB-500 is a synthetic peptide corresponding to an active fragment of Thymosin Beta-4, a naturally occurring actin-binding protein. Ascend Research supplies it as a lyophilised white powder in 5mg and 10mg vials at ≥99% purity, dispatched from within Australia for laboratory research use only.
Specifications
| CAS Number | 77591-33-4 |
| Synonyms | Thymosin Beta-4 Fragment, Tβ4 Fragment |
| Sequence | Ac-Leu-Lys-Lys-Thr-Glu-Thr-Gln-OH |
| Purity | ≥99% by RP-HPLC |
| Appearance | White lyophilised powder |
| Available Strengths | 5mg, 10mg per vial |
| Solubility | Sterile water |
| Storage | 2–8°C, dry |
Research Context
Thymosin Beta-4 and its fragments are studied in cytoskeletal and actin-sequestration research. TB-500 appears in the literature as a synthetic analogue used in in vitro model systems. Ascend Research supplies TB-500 strictly as a laboratory reference material; no representation is made regarding any physiological outcome, and it is not supplied for use in humans or animals.
Handling and Reconstitution
Allow the vial to reach room temperature before opening. Reconstitute with sterile water and swirl gently rather than shaking. Store the lyophilised powder dry at 2–8°C, refrigerate reconstituted material and use within 30 days. Avoid repeated freeze–thaw cycles.
What's Included
- One lyophilised vial (5mg or 10mg, as selected)
- Protective packaging
Frequently Asked Questions
What is the CAS number for TB-500?
77591-33-4.
Is TB-500 the same as Thymosin Beta-4?
No. Thymosin Beta-4 is the full 43-amino-acid protein; TB-500 is a shorter synthetic fragment of its active region.
Should I choose the 5mg or 10mg vial?
Both are the same material at the same ≥99% purity; vial size is a matter of research scale and storage preference.
Is TB-500 available premixed with BPC-157?
Yes — Ascend Research lists a BPC-157 + TB-500 blend as a separate product, and a two-vial research duo supplying them separately.
How is TB-500 stored?
Dry at 2–8°C. Refrigerate after reconstitution and use within 30 days.
Where does Ascend Research ship from?
Orders are dispatched from within Australia.
Important Notice
Supplied for laboratory research use only. Not for human or veterinary use, self-administration, clinical, diagnostic, or therapeutic application. This product is not a cosmetic, drug, or food product. The purchaser is responsible for compliance with all applicable regulations. By purchasing, you confirm that you are a qualified researcher or are acting on behalf of a research institution.
Supplied for laboratory research purposes only. Not approved for human or veterinary use, self-administration, or therapeutic application. Handle in accordance with applicable research regulations.