TB500
TB-500 is commonly supplied as a synthetic thymosin beta-4 active-region peptide and is referenced in peptide chemistry and cell-motility research. Research involving TB-500 frequently examines actin-binding related peptide fragments, signalling behaviour and structure-function characteristics in laboratory models.

Product Overview
TB-500 is commonly supplied as a synthetic thymosin beta-4 active-region peptide and is referenced in peptide chemistry and cell-motility research. Research involving TB-500 frequently examines actin-binding related peptide fragments, signalling behaviour and structure-function characteristics in laboratory models. This material is supplied strictly for qualified laboratory research.
Product Specification
The following information is provided for research-catalogue and product specification purposes only. Batch-specific identity, purity, salt form and analytical values should be confirmed against the relevant Certificate of Analysis.
| What it is | TB-500 is commonly supplied as a synthetic thymosin beta-4 active-region peptide and is referenced in peptide chemistry and cell-motility research. Research involving TB-500 frequently examines actin-binding related peptide fragments, signalling behaviour and structure-function characteristics in laboratory models. This material is supplied strictly for qualified laboratory research. |
|---|---|
| Sequence | Common TB-500 active fragment: Ac-Leu-Lys-Lys-Thr-Glu-Thr-Gln (Ac-LKKTETQ). Confirm against batch COA if using full thymosin beta-4. |
| Molecular weight | Approx. 889.0 g/mol for Ac-LKKTETQ fragment; full thymosin beta-4 is approx. 4963 g/mol |
| Product family | Thymosin beta-4 related peptide |
| Research classification | Synthetic peptide fragment; cell-motility / actin-interaction research compound |
| Form | Lyophilised powder |
| Appearance | White to off-white powder |
| Fill quantity | 5mg |
| Container type | Sterile sealed glass vial |
| Storage | Store dry, protected from light at -20°C. Avoid repeated freeze/thaw cycles after reconstitution. |
| Synonyms | TB-500; Thymosin beta-4 fragment; Ac-LKKTETQ |
| CAS number | 885340-08-9 for common TB-500 fragment; 77591-33-4 for thymosin beta-4 |
| Molecular form / formula | C38H68N10O14 for common TB-500 fragment |
| Molecule form | N-acetylated synthetic peptide fragment; salt form COA-specific |
| Purity | Recommended product standard: >=98% by HPLC; confirm by batch COA |
| Analysis method | HPLC and LC-MS / MS confirmation |
Certificate of Analysis
Each compound is accompanied by third-party analytical documentation where available. Certificates confirm purity, identity and chromatographic analysis against the supplied batch.
Shipping Information
Orders are typically processed within 1–2 business days of confirmed payment. Estimated delivery within Greece is 1–3 business days after dispatch; international (EU) delivery is typically 5–10 business days. All shipping is tracked and discreet.
Storage & Handling
Store dry, protected from light at -20°C. Avoid repeated freeze/thaw cycles after reconstitution.
| Form | Lyophilised powder |
|---|---|
| Appearance | White to off-white powder |
| Container type | Sterile sealed glass vial |
| Storage & Handling | Store dry, protected from light at -20°C. Avoid repeated freeze/thaw cycles after reconstitution. |
Research-Use-Only Notice
All products are supplied by Greek Peptides for research use only. They are not licensed as pharmaceuticals and are not promoted as, or intended to diagnose, treat, cure, prevent or mitigate any disease or medical condition in humans or animals. They are not intended for human or animal consumption and are not intended for cosmetic, nutritional or recreational use.
By purchasing, the purchaser confirms that they are a qualified individual acting for legitimate research purposes only and accepts our Terms and Conditions and Research Use Policy.
Greek Peptides supplies research-grade peptides to laboratories and researchers across Greece and the EU, with tracked delivery in 1–7 working days and pricing in euros. Every compound ships with a batch-specific certificate of analysis and is sold strictly for research use only — not for human or veterinary use.




