
TB-500
Synthetic peptide · research grade
For laboratory research use only. Not for human consumption.
- 99.4%HPLC assayed purity
- Third-party testedJanoshik, per batch
- View certificate ↓Full report + verify key
Ouralus supplies materials for laboratory research only — not for human or animal consumption. To enter, confirm that you are at least 21 years old and are acquiring these materials for legitimate research purposes.
For laboratory research use only. Not for human consumption.
These materials are sold for laboratory research use only and require a 21+ confirmation. Please return when you can confirm you are at least 21.

Synthetic peptide · research grade
For laboratory research use only. Not for human consumption.
A synthetic research peptide.
Identity confirmed by HPLC and mass-spec; purity assayed by third-party HPLC, with a certificate of analysis published where tested. A lot that misses spec is rejected.
Supplied as a lyophilized powder. Store at −20°C, desiccated and protected from light. Handled per the receiving laboratory's protocols. Not for human consumption.
Chemical identifiers marked [VERIFY] are pending verification and must not be treated as confirmed.
Also known asTB 500 · TB500 · Ac-LKKTETQ · N-Acetyl thymosin β4 (17-23) fragment
"TB-500" is the common name for a synthetic, N-acetylated peptide fragment (Ac-Leu-Lys-Lys-Thr-Glu-Thr-Gln) corresponding to an actin-binding region of thymosin beta-4, supplied as a lyophilized powder for laboratory research use only.
Material sold as "TB-500" is not always the same molecule — some suppliers provide full-length thymosin beta-4 — so identity should be confirmed against each lot's mass-spec / HPLC data. Ouralus provides a third-party certificate of analysis published where tested.
Solvent · laboratory handlingBacteriostatic water. Reconstitution parameters are a laboratory-handling matter determined by the researcher; no in-vivo or human-use parameters are provided.
Read the full TB-500 research reference →
Research-literature characterization, provided for research context only. For laboratory research use only. Not for human consumption.
Format is illustrative. We present no assay %, residual-solvent, or lot figures until a real batch is tested and its certificate published. For laboratory research use only. See our full standard →
"TB-500" is the common name for a synthetic N-acetylated peptide fragment (Ac-Leu-Lys-Lys-Thr-Glu-Thr-Gln) corresponding to an actin-binding region of thymosin beta-4. Ouralus supplies it as a lyophilized powder for laboratory research use only, with a third-party HPLC certificate of analysis published where tested.
Not necessarily. The name "TB-500" is used in the market for both this short synthetic fragment and, by some suppliers, full-length thymosin beta-4. Because there is no single compendial standard tying the name to one molecule, confirm identity against the lot's certificate of analysis and mass-spec data.
These materials are supplied strictly for laboratory and research use, to purchasers of legal age. They are not supplements, drugs, or foods, and are not for human or animal consumption.
TB-500 is supplied strictly as a research chemical for laboratory research use only — it is not a drug, supplement, or food, and not for human or animal consumption. It ships to purchasers of legal age for research use. Buyers are responsible for compliance with the laws that apply to research materials in their own jurisdiction.
Yes — each tested lot of TB-500 ships with a third-party HPLC certificate of analysis from Janoshik, independently verifiable by lot (verify key PDXV8UJEL1G4). The current lot assayed 99.402%. We publish the certificate before making any purity claim; this is a research chemical for laboratory use only.