# TB-500 TB-4 THYMOSIN B4 10 MG

- Link: https://zenergypeps.com/products/tb-500-10mg/
- Published: 2026-10-08T01:42:58-04:00
- Author: claude-agent

[View our 3rd-party testing data (COAs).](https://zenergypeps.com/test-results/)

TB-500 is a synthetic peptide supplied as a lyophilized powder for laboratory research.

**Chemical identity**

**TB-500 (synthetic thymosin β-4; INN timbetasin)**

 * CAS No.: 77591-33-4
 * Molecular Weight: 4963 g/mol
 * Sequence: Ac-SDKPDMAEIEKFDKSKLKKTETQEKNPLPSKETIEQEKQAGES (43 residues; N-terminal
   N-acetylserine)

**Specifications**

 * Amount per vial: 10 mg | Purity: 99.786% (HPLC; most recent COA, 7X panel)
 * Storage: Store in a cool, dry environment. Reconstituted should be refrigerated(
   2°C–8°C).

For laboratory research use only. Not for human or animal consumption.