Research background
Thymosin alpha-1 is a 28-residue N-terminally acetylated peptide originally purified from thymosin fraction 5 of bovine thymus. It is one of the best-characterised thymic peptides in immunology research.
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Thymosin Alpha-1 10 mg lyophilized research peptide vial, PRIMEGEN LABS front label. Buy Thymosin Alpha-1 10 mg from PrimeGen Labs — 99.4% purity lyophilized Thymosin Alpha-1 peptide for laboratory research, third party tested by HPLC and mass spectrometry, supplied in a sealed 10 mL borosilicate vial with a batch-matched certificate of analysis.
Longevity & Cellular Research
Thymosin Alpha-1
Immunomodulatory thymic peptide
In stock
28-amino-acid thymic peptide referenced in immune signalling research.
$60.00
- Third-party tested
- Ambient-stable transit
- Lot traceable
- Batch-matched COA
- Tracked delivery
- Research use only
For laboratory research use only. Not for human or veterinary consumption.
Laboratory specifications
- Purity (RP-HPLC)
- 99.695%
- Molecular formula
- C129H215N33O55
- Molecular weight
- 3108.3 g/mol
- CAS number
- 62304-98-7
- Form
- Lyophilized powder
- Appearance
- White to off-white lyophilized powder or cake, free of visible particulates.
- Solubility
- Sterile or bacteriostatic water; DMSO for hydrophobic sequences
- Endotoxin
- < 0.25 EU/mg
- Fill weight
- 10 mg
- Storage temperature
- -20 °C sealed · 2–8 °C after reconstitution
- Shelf life
- 36 months at -20 °C from the manufacture date
- Reconstitution
- Add diluent slowly down the vial wall; do not shake or vortex
- Synthesis
- Solid-phase (SPPS)
- Identity
- ESI-MS confirmed
- Residual solvent
- < 0.5%
- Closure
- Crimped aluminium / butyl stopper
- Manufacturer
- PRIMEGEN LABS · PrimeGen Co.
Storage & handling
Long-term
-20 °C, sealed, desiccated
In transit
Ambient stable up to 21 days
After reconstitution
2–8 °C, use within 21 days
Light exposure
Protect from direct light
Certificate of analysis
Janoshik Analytical report #109949 · sample submitted as Thymosin Alpha-1 5 mg.
- Lot number
- XX
- EXP
- XX/XXXX
- COA date
- 19 Feb 2026
- Testing laboratory
- Janoshik Analytical
- Purity
- 99.695%
- Testing method
- RP-HPLC + ESI-MS
- Batch status
- Released
- Measured content
- 5.46 mg
- Verification key
- WL85T94T38QX
Mechanism of action
Reported to signal through Toll-like receptors 2 and 9 on dendritic cells and monocytes, promoting maturation and shifting cytokine output. Downstream literature describes enhanced T-cell differentiation and increased natural killer cell activity in culture systems.
Areas of scientific investigation
- Toll-like receptor signalling assays
- Dendritic cell maturation studies
- T-cell differentiation and immune reconstitution models
- Cytokine profiling research
Listed fields describe where this sequence appears in published in vitro and preclinical literature. They are not indications, applications, or claims of effect.
Laboratory handling
Reconstitution
Allow the vial to reach room temperature before opening to prevent condensation on the lyophilized cake. Add sterile or bacteriostatic water slowly down the inner wall of the vial, then let the powder dissolve without agitation; swirl gently if needed. Do not shake or vortex — shear forces denature peptide secondary structure and cause foaming that traps material on the stopper.
Stability
As a sealed lyophilized powder the material is stable for extended periods at -20 °C when kept desiccated and protected from light. Once in solution, stability shortens considerably: aqueous stocks are normally held at 2-8 °C for short term work or aliquoted and frozen for longer storage. Repeated freeze-thaw cycling is the most common cause of measurable potency loss.
Packaging
Single sequence per vial, sealed under inert gas in USP Type I borosilicate glass with a butyl rubber stopper and crimped aluminium overseal. Each vial carries a printed PRIMEGEN LABS label with product name, strength, lot number, manufacture and retest dates, storage temperature and a QR code linking to the lot record. Vials ship in a rigid foam insert inside a protective mailer at ambient temperature.
Frequently asked questions
Pairs well with
Complementary compounds researchers run alongside Thymosin Alpha-1 — never competing alternatives.
Complete your order
Laboratory consumables matched to 1 vial in your cart.
Bacteriostatic Water
30 mL
1 × 30 mL — one vial of diluent per 3 peptide vials
$16.00
Sterile Syringes
10-pack · 1 mL
10-pack covers a standard order
$13.00
Alcohol Prep Pads
100-pack
Septum decontamination before every draw
$9.00
Vial Storage Case
25 slots
Keeps lots organised and light-protected
$33.00
Research stacks
Stacks that include THYMOSIN-ALPHA-1
Longevity Research Stack
Epitalon 10 mg · NAD+ 500 mg · Thymosin Alpha-1 5 mg
View stack