A zinc-dependent thymic nonapeptide studied for thymocyte differentiation.

| Compound | Thymulin |
| Also known as | Facteur thymique sérique (FTS) |
| CAS Number | 63958-90-7 |
| Molecular Weight | 854.94 g/mol |
| Sequence / Form | Zinc-dependent nonapeptide |
| Classification | Immune research compound |
| Appearance | Lyophilized powder |
| Purity | ≥99% (HPLC · MS-verified) |
| Storage | 2–8°C; -20°C for long-term |
| Intended Use | Research Use Only |
Thymulin is a thymic nonapeptide whose biological activity in research models is strictly zinc-dependent — the zinc-bound form is the active species. It is studied for its role in thymocyte differentiation and T-cell development.
Research also examines its cytokine-modulating activity and its position in neuroendocrine-immune signaling networks.
Every Ethos Bio lot of Thymulin is analyzed by reverse-phase HPLC and independently confirmed by mass spectrometry through our third-party testing partner, Janoshik Analytical. A signed Certificate of Analysis documenting identity and ≥99% purity is provided for every lot.
Independent third-party HPLC & mass-spec verification. The COA shipped with your order reflects your specific lot.
What is Thymulin?
Thymulin is a zinc-dependent thymic nonapeptide studied for thymocyte differentiation and immunoregulation in research models. It is a research-use-only compound.
Why is zinc important for Thymulin?
Thymulin's research activity depends on bound zinc; the zinc-peptide complex is the biologically active form studied in the literature.
What is Thymulin's molecular weight?
Thymulin has a molecular weight of approximately 854.94 g/mol and CAS number 63958-90-7.