TB-500 is a research peptide associated with Thymosin Beta-4, studied in preclinical models of actin regulation, cell migration, and soft-tissue repair. Identity and fragment/full-length status are confirmed per lot via the Certificate of Analysis.
| Associated compound | Thymosin Beta-4 |
| CAS number | 77591-33-4 |
| Molecular weight | ~4963 g/mol — confirm via COA |
| Identity | Confirmed per lot by MS — see COA |
| Purity | ≥99% by HPLC — see lot COA* |
| Physical form | Lyophilized powder |
| Reconstitution | Bacteriostatic water (see calculator) |
| Storage | −20°C desiccated; reconstituted 2–8°C |
TB-500 is a research peptide associated with Thymosin Beta-4. Because the marketed material may be a fragment or the full-length sequence, identity is confirmed per lot by mass spectrometry — always refer to the COA.
Published preclinical studies have examined TB-500 in the context of:
These represent areas of active laboratory investigation. Findings from animal and cell-culture models do not establish safety or efficacy in humans, and TB-500 is not an approved product for any human use.
Supplied as a lyophilized powder, TB-500 is stored at −20°C when kept desiccated and protected from light. Once reconstituted with bacteriostatic water, it should be kept at 2–8°C and used within a research-appropriate timeframe. See the reconstitution calculator for concentration and draw-volume math, and the handling & storage guide for shelf-life sourcing (USP <797>).
→ Read the full TB-500 research overview in the research library
Yes. Every lot is analyzed by an independent third-party laboratory using HPLC for purity and mass spectrometry for identity confirmation. The Certificate of Analysis for your specific lot is published and available before purchase.
Store the lyophilized powder at −20°C, desiccated and away from light, where it is stable long-term. After reconstitution with bacteriostatic water, keep refrigerated at 2–8°C and use within a research-appropriate window.
TB-500 is sold exclusively for laboratory and scientific research use. It is not a drug, dietary supplement, or food, and it is not intended for human or veterinary use, consumption, or administration of any kind.
Orders are processed and shipped domestically within the United States, typically arriving in 2–4 business days. Compounds are packaged to protect the lyophilized powder in transit.