A clear Thymosin Alpha-1 research vial on a coloured plaster ledge, with botanicals beside it

About this compound

Thymosin Alpha-1 is a 28-residue N-acetylated peptide originally isolated from thymosin fraction 5, a thymic tissue extract, and later fully characterised and synthesised.

Studied in

T-cell maturation
Innate immune signalling
Immunology research

Compound identity

Compound	Thymosin Alpha-1
CAS number	62304-98-7
Molecular formula	C129H215N33O55
Molecular weight	3,108.3 Da

Specifications

Purity method: HPLC
Appearance: Lyophilized powder
Solubility: Reconstitute per protocol; see Supplies for diluents.
We don't publish a purity percentage here — that figure is only meaningful tied to the lot you actually receive, so it lives on the lot certificate.

Cellular

PRAETORIAN

Thymosin Alpha-1

Thymic peptide, studied in immune-signalling research.

What the research targets

Studied in T-cell maturation and innate immune-signalling research models.

Supply formats

Single units ship from stock. Cases are back-ordered against the same single-unit price.

Stick is newly released — available alongside the vial on every compound.

Single unit

Sample quantity — one unit.

10 mgVial
PS-1947064-10-MG
On verified account
Skinni Stick™ 10 mgSkinni Stick™New
Single-compound Skinni Stick™. Supplied to verified accounts only.
PS-1947064-PEN-10-MG
On verified account

Case — back-order

Ten of one size, at 10× volume pricing.

Case · 10 × 10 mg
Back-order — 15% off the single-unit price.
PS-1947064-C10-10-MG
On verified account
Case · 10 × Skinni Stick™ 10 mgNew
Back-order — 15% off the single-unit price.
PS-1947064-C10-PEN-10-MG
On verified account

One-time verification of professional or institutional affiliation. No payment is taken on this site.

Research use only

This compound is supplied exclusively for laboratory research by qualified professionals and institutions. It is not a drug, dietary supplement, or cosmetic, and is not for human or veterinary use. We publish no dosing, administration, or human-use guidance of any kind, and nothing here should be read as a claim about an effect in people.

From the research library

Cited summaries of the published work behind Thymosin Alpha-1 — what was studied, in which model, and what was measured.

All articles

Cellular

Thymic peptides: an immunomodulator with a long paper trail

Thymosin alpha-1 has been studied since the 1970s, is licensed in a number of countries, and has a mechanistic account centred on Toll-like receptor signalling.

September 24, 20267 min read