TB-500

TB-500 South Africa: Thymosin Beta-4 Fragment for Research

Biolabs supplies TB-500 in South Africa for laboratory and analytical research. Every batch is third-party tested and dispatched from stock with tracked courier delivery. Precision. Purity. Performance.

What is TB-500?

TB-500 is a synthetic acetylated heptapeptide, Ac-Leu-Lys-Lys-Thr-Glu-Thr-Gln (Ac-LKKTETQ), corresponding to the actin-binding region of thymosin beta-4 (residues 17–23). It is used as a defined, smaller research analogue of the full 43-amino-acid protein.

Specifications

• Molecular formula: C38H68N10O14
• Molecular weight: 889.0 g/mol
• CAS number: 885340-08-9
• Sequence: Ac-LKKTETQ
• Purity: stated per batch on the COA page

Research overview

Published research on thymosin beta-4 and its fragments covers G-actin sequestration, cell migration and angiogenesis assays, and wound and tissue models in animals. TB-500 is also a subject of analytical method development in anti-doping laboratories. All areas listed are research context only.

Available formats and strengths

• TB-500 lyophilised vial: 10 mg
• TB-500 Peptide Pen: 10 mg
• Wolverine Stack (BPC-157 + TB-500): 10/20 mg

Browse all peptide vials, pre-filled peptide pens and reconstitution supplies.

Storage and reconstitution handling

Lyophilised vials: store unopened at −20 °C long-term or 2–8 °C short-term, protected from light and moisture. Vials are stable at ambient temperature during normal courier transit. Let the vial reach room temperature before opening. For reconstitution, laboratories typically use sterile water or bacteriostatic (0.9% benzyl alcohol) solution, added slowly down the vial wall and swirled gently rather than shaken. Store reconstituted solution at 2–8 °C and follow your own validated protocol for stability. Pre-filled pens are supplied as ready-made solution and must be kept refrigerated at 2–8 °C.

COA and batch testing

Each batch is tested by an independent laboratory for identity and purity (HPLC/MS). Certificates of analysis are published on our COA page, and the batch number on your vial matches its certificate.

TB-500 FAQ

Where can I get TB-500 in South Africa?
Biolabs ships TB-500 nationwide from local stock via tracked courier. SA orders over R3,500 ship free, and you can pay in 4 interest-free instalments with Payflex.

Is TB-500 for human use?
No. It is sold strictly for laboratory research and is not for human or veterinary use, diagnosis or treatment.

How should TB-500 be stored?
Lyophilised powder at −20 °C (long-term) or 2–8 °C (short-term); reconstituted solution or pre-filled pens at 2–8 °C, away from light.

How do I verify purity?
Match the batch number on your product to the certificate on our COA page.

Which format should I choose?
Lyophilised vials offer the longest shelf life; pre-filled pens are supplied ready-made for convenience. See the formats listed above.

Research use only

For research use only. Not for human or animal consumption. This product is not a medicine, food or cosmetic and is not intended to diagnose, treat, cure or prevent any disease. Statements on this page describe published research areas and are not claims of benefit. Purchasers must be 18+ and are responsible for handling the product in line with applicable laws.