Synthetic Peptide Fragment
TB-500 Peptide
As of 2026-08-23, DMV Research documents TB-500 (CAS 77591-33-4) across 4 research FAQs on this page, for laboratory research use only.
The TB-500 peptide is a synthetic fragment corresponding to an active region of Thymosin Beta-4 (Tβ4), a naturally occurring regenerative protein. It is supplied as a lyophilized powder for laboratory research.
For laboratory research use only. Not for human or veterinary use. Not for diagnostic or therapeutic use. Not a drug, food, cosmetic, or dietary supplement.
Compound identity
- Name
- TB-500
- Class
- Synthetic Peptide Fragment
- CAS number
- 77591-33-4
- Also known as
- TB-500 peptide, Thymosin Beta-4 fragment, TB500, Tβ4
- Sequence
- Ac-Ser-Asp-Lys-Pro-Asp-Met-Ala-Glu-Ile-Glu-Lys-Phe-Asp-Lys-Ser-Lys-Leu-Lys-Lys-Thr-Glu-Thr-Gln
Research context
The TB-500 peptide is a research reagent based on a fragment of Thymosin Beta-4, a 43-amino-acid protein. As a laboratory reagent it is studied for actin-binding behavior and stability characteristics in in-vitro systems.
The preclinical scientific literature on Thymosin Beta-4 and related fragments spans cell-biology and animal-model research. All such work is experimental; the TB-500 peptide is not an approved human therapeutic.
DMV Research supplies the TB-500 peptide with a third-party Certificate of Analysis per batch, confirming identity and purity for research applications.
Related research
TB-500 is profiled alongside DMV Research's other synthetic peptide fragment overviews, including BPC-157, GHK-Cu, Thymosin Beta-4, BPC-157 + TB-500 Stack (Research Overview), Follistatin 344, KPV, and Myostatin Inhibitor Peptides — Follistatin & Muscle Research Hub — each with its own identity data, cited literature, and FAQ. See the TB-500 Certificate of Analysis for lab-verified purity data.
Side-by-side comparisons
TB-500 is compared against another compound on registry identity, sequence, tested purity and catalog availability in BPC-157 vs TB-500. Those pages state identity and analytical data only — no use, effect, or preference.
Frequently asked questions
What is the TB-500 peptide?+
TB-500 is a synthetic peptide corresponding to an active fragment of Thymosin Beta-4 (Tβ4), used as a research reference compound. CAS 77591-33-4.
Is the TB-500 peptide approved for human use?+
No. TB-500 is not approved for human use by any regulatory agency. It is supplied for laboratory and research purposes only.
What is the difference between the TB-500 peptide and Thymosin Beta-4?+
Thymosin Beta-4 is the full 43-amino-acid protein; TB-500 corresponds to a shorter active region of it. Both are studied as research compounds.
What purity is the TB-500 research peptide?+
Each batch is independently tested to 99%+ purity, with a Certificate of Analysis available per batch.
Research use only
All products are intended for laboratory and research use only (RUO) and are not for human consumption, ingestion, or any in-vivo use.
The statements on this page have not been evaluated by the FDA. For laboratory research use only. Not for human or veterinary use. Not for diagnostic or therapeutic use. Not a drug, food, cosmetic, or dietary supplement.