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Regenerative & CytoprotectiveOpen access · public

Thymosin Alpha-1

Thymosin Alpha-1 is a synthetic 28-residue peptide corresponding to thymosin α1, with the molecular formula C129H215N33O55 and a molecular weight of 3108.32 g/mol.

CAS 62304-98-7Mol. weight 3108.32 g/molResearch Use Only
2D structure of Thymosin Alpha-1 (PubChem CID 16130571)
2D structure via PubChem (CID 16130571). Public domain.
Computed 3D conformation (illustrative) · from the verified structure.

Identity & structure

Verified identifiers, sequence, and analytical properties — every value machine-readable and independently sourceable against PubChem.

Ac–
S
D
A
A
V
D
T
S
S
E
I
T
T
K
D
L
K
E
K
K
E
V
V
E
E
A
E
N

Primary sequence · 28 residues · N-terminal Acetyl.

Thymosin Alpha-1 — identity and specification
Identity
CAS62304-98-7
PubChem CID16130571
FDA UNIIW0B22ISQ1C
Also known asThymosin alpha 1, Thymosin alpha-1, Thymosin alpha 1 peptide, Thymalfasin, alpha1-Thymosin
Research classRegenerative & Cytoprotective
Structure
Molecular formulaC129H215N33O55
InChIKeyNZVYCXVTEHPMHE-ZSUJOUNUSA-N
Sequence28-residue peptide
Length28 residues
Analytical
Average molecular weight3108.32 g/mol
Monoisotopic mass3106.5041 Da
FormLyophilized powder
SolubilityWater-soluble
Storage2–8 °C, desiccated

Where Thymosin Alpha-1 sits in its class

Molecular weight (g/mol) across the 15 characterized compounds in Regenerative & Cytoprotective. Compare all compounds →

Research context

Thymosin Alpha-1 is a synthetic 28-residue peptide corresponding to thymosin α1, with the molecular formula C129H215N33O55 and a molecular weight of 3108.32 g/mol. It is studied in immunological research and is supplied as a characterized reference material, verified by reversed-phase HPLC and mass spectrometry.

Supplied solely as a characterized research material. No representation is made as to any biological effect. For Research Use Only — not for human or veterinary use.

How Thymosin Alpha-1 is identified

Identity and purity are measured, not asserted. Electrospray mass spectrometry (ESI-MS) determines the mass-to-charge ratio of the intact molecule — an observed value matching the expected series above confirms the molecular formula. Reversed-phase HPLC separates the sample over time, and purity is read as arithmetic: the target peak’s area as a share of total peak area.

IdentityESI-MS · observed vs expected m/z
PurityRP-HPLC · peak area %
CompositionMolecular formula · residue count

Handling & stability

Physical form, storage, and solubility as supplied. Handling guidance only — no use protocols.

Physical formLyophilized powder
Storage2–8 °C, desiccated
SolubilityWater-soluble
Length28 residues

Related compounds

Other compounds in this research class.

Frequently asked questions

What is Thymosin Alpha-1?
Thymosin Alpha-1 is a synthetic 28-residue peptide corresponding to thymosin α1, with the molecular formula C129H215N33O55 and a molecular weight of 3108.32 g/mol. It is studied in immunological research and is supplied as a characterized reference material, verified by reversed-phase HPLC and mass spectrometry.
What is the molecular formula of Thymosin Alpha-1?
Thymosin Alpha-1 has the molecular formula C129H215N33O55, giving a molecular weight of 3108.32 g/mol. Its monoisotopic mass is 3106.5041 Da.
What is the CAS number of Thymosin Alpha-1?
The CAS Registry Number for Thymosin Alpha-1 is 62304-98-7. Its InChIKey is NZVYCXVTEHPMHE-ZSUJOUNUSA-N.
How is the identity of Thymosin Alpha-1 confirmed?
Identity is confirmed by electrospray mass spectrometry. The observed mass-to-charge ratio is compared against the expected series — for Thymosin Alpha-1, [M+H]⁺ is expected at m/z 3107.51. Purity is measured separately by reversed-phase HPLC as the target peak’s share of total peak area.
How should Thymosin Alpha-1 be stored?
Thymosin Alpha-1 is supplied as lyophilized powder and should be stored at 2–8 °C, desiccated. It is water-soluble.
Is Thymosin Alpha-1 a peptide?
Yes. Thymosin Alpha-1 is a peptide — a chain of amino-acid residues joined by peptide bonds, 28 residues in length. Its identity is defined by that sequence and its molecular mass.
Is Thymosin Alpha-1 approved for human use?
No. Thymosin Alpha-1 is supplied strictly for laboratory research use only. It is not a drug, is not approved by the FDA for any human or veterinary use, and must not be administered to humans or animals.

Data, tools & certificates

References

  1. PubChem — compound identity, structure & computed properties (CID 16130571). PubChem →
  2. CAS Registry Number 62304-98-7.
  3. FDA Global Substance Registration System — UNII W0B22ISQ1C.

Research professionals only

Thymosin Alpha-1 — from the record to the bench

The monograph and every lot certificate stay public. Pricing and ordering open for verified research professionals.

áFor Research Use Only · Not for human or veterinary use · Not for diagnostic or therapeutic use