TB-50010 mg
Thymosin Beta-4 fragment.
For laboratory and in-vitro research use only. Not a food, drug, supplement, or cosmetic, and not for human or veterinary use.
Identity & analytics
Every lot ships with a Certificate of Analysis bearing HPLC purity, synthesis date, and retention time.
- CAS number
- 77591-33-4
- Molecular weight
- 4963.44 g/mol
- Amino-acid chain
- 17 residues
- HPLC purity
- 98.7%
- Category
- Recovery & repair
- Format
- Lyophilized powder
Verified three ways
- 01
In-house HPLC
Reverse-phase chromatography on every batch — retention time, peak area, and impurity profile.
- 02
Independent confirmation
Re-run by an accredited third-party laboratory in Houston. Identity confirmed by mass-spectrometry.
- 03
Public COA index
Every peptide's Certificate of Analysis is published to veritaspeptideslab.com/lab-reports the same day the order ships.
Certificate of Analysis
TB-500
- HPLC purity
- 98.9%
- Method
- RP-HPLC, 214 nm
- Identity
- ESI-MS confirmed
- Net peptide
- 81.4%
- Counter-ion
- Acetate
- Water
- 4.6%
- Endotoxin
- <0.5 EU/mg
- Storage
- -20°C, desiccated
- Synthesis date
- Aug 05, 2026
- Mass-spec
- Confirmed
TB-500 questions, answered
- 01
What is TB-500 and how does it relate to thymosin beta-4?
TB-500 is a synthetic peptide based on thymosin beta-4 (Tβ4), a naturally occurring actin-regulating protein studied in cell-migration, angiogenesis, and tissue-repair research (CAS 77591-33-4). It is supplied for laboratory research use only.
See related research compounds in the recovery & repair category.
- 02
What diluent is used to reconstitute TB-500?
Laboratories typically reconstitute TB-500 with bacteriostatic water. Use the Reconstitution Calculator to work out the diluent volume that yields your target concentration before you open the vial.
- 03
How should TB-500 be stored before and after reconstitution?
Store sealed lyophilized vials refrigerated (2–8 °C), or at −20 °C for the long term, protected from light and moisture. After reconstitution, keep the solution refrigerated and consult our stability data for the recommended in-use window.
- 04
Is every TB-500 lot third-party tested?
Yes — each lot is run on in-house HPLC and then re-confirmed by an independent accredited laboratory; recent TB-500 lots have assayed at ~98.7% purity. The certificate for your specific batch number is published in our lab report index.