Thymosin Alpha-1 vs Thymulin
A side-by-side research comparison — classification, molecular weight, mechanism, and how each is verified. For laboratory research use only.
01At a Glance
| Thymosin Alpha-1 | Thymulin | |
|---|---|---|
| Classification | Immune | Immune |
| Molecular weight | 3,108.3 g/mol | 854.94 g/mol |
| Also known as | Tα1; Thymalfasin | Facteur thymique sérique (FTS) |
| Purity spec | ≥99% HPLC | ≥99% HPLC |
| Verification | MZ Biolabs · 5-panel | MZ Biolabs · 5-panel |
| Use | Research Use Only | Research Use Only |
02How They Differ
Thymosin Alpha-1
A thymic peptide studied for T-cell maturation and Toll-like-receptor signaling.
Thymosin Alpha-1 is a 28-amino-acid N-terminally acetylated peptide derived from the thymic protein prothymosin alpha. Research focuses on its role in T-cell maturation and differentiation and modulation of Toll-like receptors (TLR2, TLR9) on dendritic cells.
Thymulin
A zinc-dependent thymic nonapeptide studied for thymocyte differentiation.
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 framing only · No human-use claims
03Selecting for a Research Model
Because Thymosin Alpha-1 and Thymulin are both immune research compounds, they are frequently evaluated against one another. Selection depends entirely on the research question, model system, and endpoints being measured. Both compounds are supplied strictly for in-vitro and laboratory research and are not for human or veterinary use.
Whichever you select, every Ethos Bio lot is verified the same way — a five-point independent panel with a batch-specific Certificate of Analysis. See how we test →
04FAQ
What is the difference between Thymosin Alpha-1 and Thymulin?
Thymosin Alpha-1 is a immune research compound — A thymic peptide studied for T-cell maturation and Toll-like-receptor signaling. Thymulin is also studied within the immune area — A zinc-dependent thymic nonapeptide studied for thymocyte differentiation. They differ in molecular weight (Thymosin Alpha-1: 3,108.3 g/mol; Thymulin: 854.94 g/mol) and primary mechanism. Both are supplied for laboratory research use only.
What are the molecular weights of Thymosin Alpha-1 and Thymulin?
Thymosin Alpha-1 has a molecular weight of 3,108.3 g/mol. Thymulin has a molecular weight of 854.94 g/mol.
Are Thymosin Alpha-1 and Thymulin in the same research class?
Yes — both Thymosin Alpha-1 and Thymulin are categorized as Immune research compounds, which is why they are often compared.
How are Thymosin Alpha-1 and Thymulin tested?
Both are analyzed by an independent third-party laboratory (MZ Biolabs, Arizona) on a five-point panel — HPLC purity, mass-spectrometry identity, endotoxin, heavy metals, and sterility — with a batch-specific Certificate of Analysis provided per lot.