Description
TB-500 5mg Specifications
- Compound: TB-500 (Thymosin Beta-4 fragment)
- Sequence: Ac-Leu-Lys-Lys-Thr-Glu-Thr-Gln
- Molecular Formula: C₂₁₂H₃₅₀N₅₆O₇₈S
- Molecular Weight: ~4963 g/mol
- Purity: ≥99% (HPLC tested)
- Form: Lyophilized powder, sterile vial
- Quantity: 5mg per vial
- CAS Number: 77591-33-4
Research Context
TB-500 is a synthetic peptide fragment derived from Thymosin Beta-4 (Tβ4), a naturally occurring 43-amino-acid protein. It is studied in non-clinical laboratory research investigating actin-binding mechanisms, tissue-repair models, and angiogenesis research. TB-500 is commonly studied alongside BPC-157 in comparative tissue-repair research protocols.
Reconstitution & Storage
Reconstitute with bacteriostatic water for laboratory research. Typical: 2mL bacteriostatic water yields a 2.5 mg/mL solution. Store lyophilized vials at 2–8°C (refrigerated). Reconstituted solution should be stored at 2–8°C and used within 30 days. Do not freeze.
Purity & Lab Reports
Every batch of TB-500 from AminoCore Labs is HPLC tested for ≥99% purity. Batch-specific lab reports are available in our COA Archive.
Related Research Peptides
- BPC-157 5mg — commonly paired in tissue-repair research
- GHK-Cu 50mg — copper tripeptide
- Thymosin Alpha-1 10mg — distinct Tα1 peptide
FOR RESEARCH USE ONLY. Not for human consumption, veterinary, diagnostic, or therapeutic use.
Frequently Asked Questions
What is TB-500?
TB-500 (Thymosin Beta-4 fragment) is a synthetic peptide consisting of a 17-amino-acid active region of the naturally occurring Thymosin Beta-4 protein. It is used in laboratory research investigating actin sequestration, angiogenesis markers, and tissue-repair pathways in non-human models.
How should TB-500 be reconstituted and stored?
Lyophilized TB-500 should be stored at 2–8°C in its original sealed vial. After reconstitution with bacteriostatic water, store at 2–8°C and use within 30 days. Avoid repeated freeze-thaw cycles to preserve peptide integrity.
What purity level does AminoCore Labs offer for TB-500?
TB-500 5mg is tested by HPLC at ≥99% purity. Each batch ships with a Certificate of Analysis accessible via the COA Archive.
Is TB-500 sold for human use?
No. TB-500 sold by AminoCore Labs is intended exclusively for laboratory research use only. It is not for human consumption, veterinary, diagnostic, or therapeutic use, and is not an FDA-approved drug.






