Antimicrobial and immune peptides
Thymosin Alpha-1 research peptide
Thymosin alpha-1 is a 28-residue, N-terminally acetylated peptide originally isolated from thymosin fraction 5, a protein extract of calf thymus. The synthetic form is known by the international nonproprietary name thymalfasin.
For in-vitro laboratory research only. Not for human or veterinary use.
Specifications
- Compound
- Thymosin Alpha-1
- Also known as
- Thymalfasin; Tα1
- Class
- Antimicrobial and immune peptides
- Length
- 28 amino acids (N-acetylated)
- Sequence
Ac-SDAAVDTSSEITTKDLKEKKEVVEEAEN- Molecular formula
- C129H215N33O55
- Molecular weight
- 3108.3 g/mol
- Form
- Lyophilized powder, sealed vial
- Vial sizes
- 10mg
- Purity release standard
- ≥ 99.0% by HPLC-UV, identity by LC-MS
- Storage
- −20 °C, dry, protected from light
- PubChem
- CID 16130571
Lot release testing
Each Thymosin Alpha-1 lot is released only after it passes every assay below. Lots under 99.0% purity do not ship.
| Assay | Method | Release criterion |
|---|---|---|
| Purity | HPLC-UV | ≥ 99.0% |
| Net peptide content | Quantitative HPLC | ≥ 100% of label |
| Identity | LC-MS | Matches theoretical mass |
| Appearance | Visual | White lyophilized cake |
| Fentanyl screen | LC-MS/MS | Not detected |
| Heavy metals | ICP-MS | Within specification |
| Sterility | PCR | Not detected |
| Endotoxin | LAL | Within specification |
Frequently asked questions
What is Thymosin Alpha-1?
Thymosin alpha-1 is a 28-residue, N-terminally acetylated peptide originally isolated from thymosin fraction 5, a protein extract of calf thymus. The synthetic form is known by the international nonproprietary name thymalfasin.
How is each Thymosin Alpha-1 lot tested?
Every lot is tested at an ISO/IEC 17025 accredited third-party laboratory against an eight-assay panel: HPLC-UV purity, quantitative net peptide content, LC-MS identity, appearance, a fentanyl screen, heavy metals by ICP-MS, sterility by PCR, and endotoxin by LAL. The certificate is published before the lot ships.
How do I verify the certificate for my Thymosin Alpha-1 vial?
Scan the QR code on the vial label to open the certificate for that exact lot, or search the lot number in the North Wall COA library.
Is Thymosin Alpha-1 for human use?
No. North Wall sells this compound solely for in-vitro laboratory research by qualified researchers aged 21 and over. It is not for human or veterinary use, and North Wall does not provide use, preparation, or dosing guidance.
Related reference pages
Molecular data: PubChem CID 16130571. Lot-specific values appear on the certificate for each batch.