Thymosin Alpha-1
Synthetic 28-amino-acid peptide (Thymosin Alpha-1), lyophilised. For in vitro research use only.
Key facts
- Compound:
- Thymosin Alpha-1
- Purity:
- ≥99%, verified by HPLC
- Identity confirmed by:
- LC-MS, independent third-party lab
- Molecular weight:
- 3108.3 g/mol
- Certificate of analysis:
- available on request, verifiable by lot number
- Ships from:
- Vancouver, BC — typically 2–5 business days, tracked and insured, no customs
- Intended use:
- in vitro laboratory research only — not for human or veterinary consumption
Page last updated
Thymosin Alpha-1 is a synthetic 28-amino-acid peptide.
Buy Thymosin Alpha-1 in Canada direct from Popular Peptides. One 10 mg vial, ≥99% purity, molecular weight 3108.3 g/mol. Every batch is assayed by HPLC and LC-MS at an independent laboratory, and the batch-specific Certificate of Analysis is available on request. Each vial carries a lot number you can check yourself at popularpeptides.ca/verify before it goes near an experiment. Tracked, insured delivery from Vancouver, BC — typically 2 to 5 business days, with no customs step and no brokerage fee.
Supplied lyophilised for in vitro laboratory research use only; not intended for human or veterinary use.
⚠️ Research Use Only. This compound is intended for in vitro research and laboratory use only. Not for human or veterinary consumption.
Thymosin Alpha-1 — compound background
N-acetylated 28-residue thymic peptide
Thymosin Alpha-1 is an N-terminally acetylated 28-amino-acid peptide derived from prothymosin alpha and originally isolated from thymic tissue. It is one of the most-studied immune-modulating peptides, examined for a role in T-cell maturation and immune signalling; the clinical formulation is known as Zadaxin.
Solubility & reconstitution
Highly water-soluble. The sequence is strongly acidic and intrinsically disordered, with no hydrophobic core to resist dissolution, so it takes up water readily.
Commonly worked at 1-5 mg/mL.
Storage
Sealed powder stable at -20 °C. Refrigerate at 2-8 °C.
Commonly worked with for 2-4 weeks at 2-8 °C.
Stability
It carries no methionine, cysteine or tryptophan, so it is not oxidation- or light-sensitive — a comparatively forgiving peptide once the deamidation route is respected.
Reading the Certificate of Analysis
Confirm the mass near 3108 Da and that the N-terminal acetyl group is present (an unacetylated impurity sits 42 Da lighter). Check peptide content separately from purity.
Background and handling information is educational, for in-vitro laboratory research use only — not medical advice, dosing, or usage guidance, and not a description of use in humans or animals.
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Thymosin Alpha-1 laboratory reference
Thymosin Alpha-1 is n-acetylated 28-residue thymic peptide. Handling requirements follow from that chemistry rather than from generic peptide guidance — the pages below cover each aspect specifically for this compound.
Lyophilized and reconstituted storage conditions, plus the practical working window.
Diluent selection, dissolution behaviour, and the calculator preset for this compound.
Which solvents work, why, and what abnormal dissolution behaviour indicates.
The specific chemical routes by which this molecule breaks down, and how to limit each.
Which assays are informative for this molecule, and what to actually check on its COA.
Compound-specific bench practices, and the errors most often made with this molecule.
What to inspect on arrival, and which conditions actually warrant rejecting a vial.
Questions specific to this compound — structure, chemistry, and common misconceptions.
Thymosin Alpha-1 compared with
Reference content is educational laboratory-handling information for in-vitro research use only — not medical advice, not usage guidance, and not a protocol.