Thymosin Alpha 1
Synthetic 28-residue peptide. Loti Labs supplies it as lyophilized powder in 10 mg vials, for laboratory research.
Ac = N-terminal acetylation on Ser1. Asn28 has a free C-terminal carboxyl group.
Specifications
Reference dataFormula, molecular weight and CAS number are reference values for the compound, not measurements of a specific batch.
- Compound
- Thymosin Alpha 1
- Class
- Synthetic 28-residue peptide
- Molecular formula
- C129H215N33O55
- Physical presentation
- Lyophilized powder, sealed vial
- Formats
- 10 mg vial
- Sequence
- Ac-Ser-Asp-Ala-Ala-Val-Asp-Thr-Ser-Ser-Glu-Ile-Thr-Thr-Lys-Asp-Leu-Lys-Glu-Lys-Lys-Glu-Val-Val-Glu-Glu-Ala-Glu-Asn-OH
- Reference support
- Goldstein et al. (1977)
Current certificates of analysis
TipMatch the batch number on your vial label to the certificate. Click any certificate to open it full size.
10 mg vial
Batch LL-TA1-726 tested at 99.74% purity by RP-HPLC. Identity was found to conform by mass spectrometry. Endotoxin screen: <0.05 EU/mL.
- Batch
- LL-TA1-726
- Tested
- Jul 27, 2026
- Laboratory
- Bioviridian
Batch history
RecordEvery certificate stays on record under its batch number, even after a newer batch arrives.
| Tested | Format | Batch | Purity | Identity | Laboratory | |
|---|---|---|---|---|---|---|
| Jul 27, 2026 | 10 mg vial | LL-TA1-726 | 99.74% | Conforms | Bioviridian | Certificate |
How every batch is tested
MethodEvery Loti Labs batch goes to an independent, U.S.-based third-party laboratory.
- 1
Sample sent
Samples from the production batch go to the laboratory under the batch number.
- 2
Purity
HPLC separates sample components and can be used to assess chromatographic purity. Determining absolute compound content requires a validated quantitative assay.
- 3
Identity
Mass spectrometry provides evidence supporting compound identity, where reported.
- 4
Archived
The certificate is published and kept for good. Search the archive.
Questions researchers ask
ArchiveEvery certificate we have published is searchable in the COA archive.
What purity is the current Thymosin Alpha 1 batch?
10 mg vial: batch LL-TA1-726 tested at 99.74% purity by RP-HPLC on Jul 27, 2026, identity confirmed by mass spectrometry.
What is the molecular formula and weight of Thymosin Alpha 1?
Thymosin Alpha 1 has the sequence Ac-Ser-Asp-Ala-Ala-Val-Asp-Thr-Ser-Ser-Glu-Ile-Thr-Thr-Lys-Asp-Leu-Lys-Glu-Lys-Lys-Glu-Val-Val-Glu-Glu-Ala-Glu-Asn-OH, molecular formula C129H215N33O55 and a molecular weight of 3108.3 g/mol, CAS 62304-98-7.
How do I find the certificate for my vial?
Match the lot number printed on the vial label to the batch column in the history table, or search it in the Loti Labs COA archive. Every certificate is kept permanently under its batch number.
What is Thymosin Alpha 1 from Loti Labs intended for?
Loti Labs supplies Thymosin Alpha 1 strictly for laboratory, analytical and research use. It is not for human or veterinary use, and it is not a drug, food or cosmetic.
Further reading on Thymosin Alpha 1
Related compound profiles
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Research use only. This page is provided for laboratory, analytical and research reference. Products are not drugs, foods or cosmetics and are not for human or veterinary use.