Thymosin Alpha 1 — illustrative photo of a kit of 10 vials — Illustrative packaging. Supplied materials and packaging vary by order.

Recovery & repair · Research peptides

Thymosin Alpha 1

Thymosin Alpha 1 (thymalfasin): an N-terminally acetylated thymic peptide for immunology research; lyophilized powder.

Every lot ships with its COA — HPLC purity + MS identity
Purity specification ≥ 99.0%
From 1 kit (10 vials) per SKU
Written quote by email or WhatsApp

Specification

$129.95 / kit of 10 vials

$13.00 per vial · line total $129.95

kit · 10 vials

Need another spec, a larger fill or custom labelling?

Reference prices · Thymosin Alpha 1 5 mg
Kits on your quote list	Price / kit
Retail · 1–4 kits	$129.95
Wholesale · 5–19 kits (−20%)	$103.96
20+ kits	Ask for a quote

Kits count across your whole quote list, so different products add up. Pricing FAQ

Reference prices in USD, per kit of 10 vials. The final price is the one on your written quote. Need another currency? Your sales representative can quote it.

Specifications

Thymosin Alpha 1 parameters

CAS number	62304-98-7
Molecular formula	C129H215N33O55
Molecular weight	3108.3 g/mol
PubChem CID	16130571
Purity specification	≥ 99.0% (HPLC)
Appearance	White to off-white lyophilized powder
Specifications	2 mg, 5 mg, 10 mg
Kit	10 vials per kit · minimum 1 kit per SKU
Storage	Keep the powder sealed and dry, following the label and stability statement of your lot. Once it is dissolved, the solvent, concentration, pH, container, temperature and hold time are for your lab to qualify; no general hold time is given.

Specifications and reference prices
SKU	Content	Price / kit	Per vial
`TA2`	2 mg	On request	—
`TA5`	5 mg	$129.95	$13.00
`TA10`	10 mg	$195.50	$19.55

Another format

Thymosin Alpha 1 in a nasal spray bottle

Strengths: 10 mg
Fill: 10 mL or 20 mL
At least: 10 bottles of one strength and size
Dispatched from: US stock, to US addresses

Nasal sprays are quoted by our sales team, separately from the kits on your quote list.

Black 10 mL nasal spray bottle with a clear dust cap — Spray bottle, 10 mL

Test results for every lot

Each lot of Thymosin Alpha 1 has its own certificate of analysis with HPLC purity and mass-spectrometry (MS) identity. Other tests — water content, counter-ion, endotoxin — are available on request and listed on the COA when tested.

Batch COAs 3

Batch COA, lot release

Thymosin Alpha 1

2 mg

HPLC purity · MS identity

Batch COA, lot release

Thymosin Alpha 1

5 mg

HPLC purity · MS identity

Batch COA, lot release

Thymosin Alpha 1

10 mg

HPLC purity · MS identity

Third-party test reports 2

Third-party laboratory, Tianjin

Thymosin Alpha 1

5 mg

HPLC purity · MS identity

Third-party laboratory, Tianjin

Thymosin Alpha 1

10 mg

HPLC purity · MS identity

Previews show the first page only, at a resolution where small print cannot be read; numbers, dates, names and signatures are covered. The full, clear copy comes from our sales team.

COA of the batch you receive: ask our sales team.

Independent test fails? Full refund. How the refund works

How to read a COA →

Research background

About Thymosin Alpha 1

Thymosin alpha 1 was isolated from bovine thymus and sequenced by Goldstein and colleagues in 1977. It is a short peptide with an acetylated N-terminus, made today by synthesis, and is also known by its drug name, thymalfasin.

Research interest centres on T-cell maturation and innate immune signalling; Romani and colleagues (2007) review it as a regulator of inflammation, immunity and tolerance. Clinical trials and meta-analyses have also been published (Wu et al., 2013). We list it in Recovery & repair with the other immune-signalling peptides, such as LL-37 and KPV.

Selected literature

For laboratory research use. This page describes published research and the material we supply; it is not medical advice.

Thymosin Alpha 1 FAQ

How is Thymosin Alpha 1 different from Thymalin and Thymulin?

Thymosin Alpha 1 is one defined, synthetic peptide with its own CAS number (62304-98-7). Thymalin is a thymus extract and Thymulin a different, zinc-binding thymic peptide; both are sold under the separate Thymalin/Thymulin listing.

What does MS identity confirm for this peptide?

That the mass matches the acetylated peptide, 3108.3 g/mol in the table above. A chain without the N-terminal acetyl group would come out lighter.

How to order

Ordering Thymosin Alpha 1 from Medabol

Kit and minimum: Thymosin Alpha 1 is sold by the kit: 10 vials of one specification (2 mg, 5 mg and 10 mg). The minimum is 1 kit per SKU, so an individual buyer can order a single kit and a lab can order many.
Price: Reference prices are listed per kit above, from $129.95. The kits of your whole quote list count together — 5–19 kits are 20% off every kit, and from 20 kits our sales team quotes the price — so Thymosin Alpha 1 adds up with anything else you order; your written quote has the final price.
Documents: Every lot has its own COA with HPLC purity and MS identity; the order ships with the certificate of its lot, and our sales team sends it before you order if you ask.
Shipping: Orders ship from China by international express courier. Shipping from $80 per order; the written quote confirms the exact charge for your destination.
Payment: Nothing is paid on this website. After you send your quote list, a sales representative confirms the amount and shipping on WhatsApp or by email and tells you in that chat how to pay.
Research goal: Listed under Recovery & repair — BPC-157, TB-500, their blends and immune-signalling peptides.

Questions first?

Ask about Thymosin Alpha 1.

Quantities, documents, timing or a spec that is not listed — the reply comes from a sales representative.

Name *

Email *

WhatsApp / Phone

Required for Chat on WhatsApp.

Message *

Thymosin Alpha 1

Thymosin Alpha 1 parameters

Thymosin Alpha 1 in a nasal spray bottle

Test results for every lot

Batch COAs 3

Thymosin Alpha 1

Thymosin Alpha 1

Thymosin Alpha 1

Third-party test reports 2

Thymosin Alpha 1

Thymosin Alpha 1

About Thymosin Alpha 1

Selected literature

Thymosin Alpha 1 FAQ

Ordering Thymosin Alpha 1 from Medabol

Ask about Thymosin Alpha 1.

More in research peptides.

5-Amino-1MQ

ACE-031

ACTH 1-39

Adamax