LOT YPB.231✓ COA VERIFIED
✓ Purity ≥ 98%Research use only
Thymosin Alpha 1 (TA1)
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Certificate of Analysis — Lot YPB.231
View COACompound information
Molecular profile
What is Thymosin Alpha 1 (TA1)?
TypeSynthetic 28-amino-acid peptide (thymalfasin)
CAS number62304-98-7
Mol. weight3108.3 g/mol
Amino acids28
Storage requirements
Stability information
Protect from lightRoom-temp stable (short-term)
Lyophilized (powder)−20°C · stable long-term
Reconstituted2–8°C · use within 30 days
Lab verification
Verified by a third-party lab
This lotYPB.231
TestedDec 2025 · USA
Result6 of 6 tests passed
Research overview
Thymosin Alpha 1 (TA1) in the literature
Contents Thymalfasin Form / storage Lyophilized powder; store at −20 °C, protect from light Purity ≥98% — see lot COA CAS 62304-98-7 Molecular formula C129H215N33O55 Molecular weight 3108.3 g/mol Testing Identity (UV/Vis λmax), purity, assay (Beer-Lambert), heavy metals, microbial (TAMC/TYMC) COA Batch-specific — view on this page Research background Thymosin Alpha-1 is an N-acetylated 28-residue peptide originally isolated from thymic tissue (Thymosin Fraction 5) and now produced synthetically; it contains no cysteine and therefore no disulfide bonds. It is one of the most extensively researched thymic peptides in immunology. Research has focused on its apparent ability to modulate T-cell maturation and function, influence dendritic-cell and cytokine activity, and engage Toll-like receptor signaling in experimental systems. Research applications T-cell differentiation / immunomodulatory signaling in vitro Preclinical models of immune response and antiviral defense Reference compound in TLR and cytokine research Quality & documentation Every lot is tested by an independent third-party laboratory before it enters the catalog.
HighlightsResearch has focused on its apparent ability to modulate T-cell maturation and function, influence dendritic-cell and cytokine activity, and engage Toll-like receptor signaling in experimental systems.Research applications T-cell differentiation / immunomodulatory signaling in vitro Preclinical models of immune response and antiviral defense Reference compound in TLR and cytokine research Quality & documentation Every lot is tested by an independent third-party laboratory before it enters the catalog.Testing covers identity (characteristic UV/Vis λmax matched to a reference standard), percent purity (≥98%, correlation-coefficient method), quantitative assay (Beer-Lambert, ≥95% of label claim), heavy metals (total ≤150 ppb — Pb, Cd, Hg, Ni, Fe, Co), and microbial limits (TAMC/TYMC).Each order ships with the Certificate of Analysis matching its lot number.
COA breakdown
✓ 6 of 6 tests passedPASSIdentityλ-max matchesLambda-max vs reference standardPASSPurity≥98% · UV/VisUV/Vis correlationPASSQuantitative assay≥95% of labelBeer-Lambert · ≥95% label claimPASSHeavy metals<20 ppbNMT 150 ppb/vial specPASSTAMC · aerobic microbial0 CFUNMT 1,000 CFU · 48 h @ 37 °CPASSTYMC · yeast & mold0 CFUNMT 100 CFU · 48 h @ 30 °C
Purity is measured per lot; panel results per the Analytical Formulations summary report for the lot currently shipping.
Product details
- Type
- Synthetic 28-amino-acid peptide (thymalfasin)
- CAS number
- 62304-98-7
- Molecular weight
- 3108.3 g/mol
- Form
- Lyophilized powder
- Storage
- Room temp in transit · −20 °C long-term
