Tissue Repair Research

Thymosin Alpha-1

Immune-signalling peptide

Also known as Tα1, Thymalfasin.

A 28-residue N-acetylated peptide originally isolated from thymic tissue, studied in T-cell maturation, dendritic-cell and immune-response models.

Current lot: SN-TA1-2607
Purity: 99.19% by HPLC
Tested: Jul 8, 2026
Stocked in: United States, Canada

Synamino Sciences research vial with a silver cap on a slate-blue background

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Vial size

$44.00

USD · 5 mg · In stock

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Order by 2:00 PM PT for same-day dispatch from Reno, Nevada. 1–3 business days by USPS Priority and UPS. Free shipping over $150.00.

For laboratory research use only. Not for human or veterinary use.

About the compound

Thymosin alpha-1 is one of the best-characterised thymic peptides. Research applications include T-cell differentiation assays, toll-like-receptor signalling and models of immune modulation.

Supplied as a lyophilized powder in 5 mg and 10 mg vials.

Studied inT-cell maturation · Dendritic cells · Immune modulation

Certificate of analysis

The certificate for the lot currently shipping. Every vial in that lot carries the same lot number on its label.

Certificate of analysis

Thymosin Alpha-1 · 10 mg

Lot SN-TA1-2607 · tested Jul 8, 2026

99.19%

Purity by HPLC

Labeled: 10 mg
Measured: 10.2 mg
Panel: 6 passed · 2 reported
Laboratory: Independent ISO/IEC 17025 accredited laboratory

Assay	Method	Result	Outcome
Appearance	Visual	White lyophilized powder	Pass
Purity	HPLC · spec ≥ 98%	99.19%	Pass
Net peptide content	HPLC	10.2 mg	Reported
Identity	LC-MS	Confirmed	Pass
Heavy metals	ICP-MS	Not detected	Pass
Sterility	USP <71>	No growth	Pass
Endotoxin	LAL · USP <85>	< 0.05 EU/mL	Reported
Residual solvents	GC-HS	Within limits	Pass

Specification and storage

CAS number: 62304-98-7
Molecular formula: C129H215N33O55
Molecular weight: 3108.3 g/mol
Residues: 28
Sequence: Ac-SDAAVDTSSEITTKDLKEKKEVVEEAEN-OH
Reference record: PubChem entry

Storage

Sealed lyophilized vials are stable at room temperature for short periods; store at 2–8 °C for routine use.
For long-term storage keep sealed vials at −20 °C, protected from light and moisture.
Reconstituted solutions should be refrigerated at 2–8 °C and used within the period defined by your laboratory's protocol.

Literature

Peer-reviewed publications on this compound. Provided for reference; they are not claims about this product.

01
World Journal of Virology · 2020
Thymosin alpha 1: A comprehensive review of the literature
Dominari A, Hathaway D 3rd, Pandav K, et al.
02
International Journal of Infectious Diseases · 2015
Thymosin alpha1 based immunomodulatory therapy for sepsis: a systematic review and meta-analysis
Li C, Bo L, Liu Q, et al.
03
Vitamins and Hormones · 2016
Immune Modulation with Thymosin Alpha 1 Treatment
King R, Tuthill C

Studied alongside

LL-37
Human cathelicidin
from $42.00
KPV
α-MSH tripeptide
from $38.00
Glutathione
Reduced tripeptide antioxidant
from $54.00

Research notice

Thymosin Alpha-1 is supplied for in vitro laboratory research and analytical use by qualified professionals. It is not a medicine, supplement or cosmetic, has not been evaluated by any regulator, and is not for human or veterinary use. Published findings cited on this page are provided for reference and are not claims about this product.