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30% off the entire catalogue 10–15 days delivery Sold in 10-vial packs Plain, tracked packaging COA on every lot Use code NOISE10 for 10% off 30% off the entire catalogue 10–15 days delivery Sold in 10-vial packs Plain, tracked packaging COA on every lot Use code NOISE10 for 10% off
Repair & Recovery

TB-500

Also known as: Thymosin Beta-4, Tβ4

Studied in laboratory models for its role in actin regulation, cell migration, and tissue-repair pathways.

$455.00 USD / 10-vial pack $650.00 Save 30%
In stock

$45.50 per vial · sold in packs of 10

≥99% purity CAS 77591-33-4
Packs
10 vials Buy 3+ packs to unlock bulk pricing

10–15 days delivery. Orders ship directly from our manufacturing partner. Allow 10–15 days for delivery. Shipments may be subject to customs clearance, which can affect delivery time.

Buy more, save more — applied automatically at checkout
PacksDiscountPer vial
1–2 (10–20 vials) $45.50
3+ (30+ vials) −5%$43.22
5+ (50+ vials) −10%$40.95
10+ (100+ vials) −15%$38.68
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Specifications

CAS number77591-33-4
Molecular formulaC212H350N56O78S
Molecular weight4963.4 g/mol
Sequence / structureAc-LKKTETQ (active Thymosin beta-4 region; full Tβ4: SDKPDMAEIEKFDKSKLKKTETQEKNPLPSKETIEQEKQAGES)
Purity≥99% (HPLC)
AppearanceWhite lyophilized powder
SolubilitySoluble in bacteriostatic water / 0.9% NaCl
StorageLyophilized: -20°C, 24+ months. Reconstituted: 2-8°C, use within 4 weeks.
Available sizes10mg

Reference data compiled from public chemical databases and the peer-reviewed literature. Provided for laboratory research use only.

Research context

Studied in laboratory models for its role in actin regulation, cell migration, and tissue-repair pathways.

Thymosin Beta-4. A 43-amino-acid research compound involved in actin sequestration and tissue repair.

For research use only. Not for human or veterinary use. Sold as a laboratory reference material for in-vitro research.

Certificate of Analysis

Each lot of TB-500 is independently tested by Janoshik Analytical by HPLC (purity) and mass spectrometry (identity), and released against a batch-specific certificate of analysis. Request the COA for your lot number and we'll send the matching certificate so you can verify vial-to-lot before any assay work.

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New to COAs? Read our guide on how to read a peptide certificate of analysis.

Frequently asked questions

What is TB-500 studied for?

Studied in laboratory models for its role in actin regulation, cell migration, and tissue-repair pathways.

What is the molecular formula of TB-500?

TB-500 has molecular formula C212H350N56O78S, and a molecular weight of ~4963.4 g/mol, and CAS number 77591-33-4.

How is TB-500 stored and reconstituted?

Soluble in bacteriostatic water / 0.9% NaCl Lyophilized: -20°C, 24+ months. Reconstituted: 2-8°C, use within 4 weeks.

Is TB-500 for human use?

No. TB-500 is supplied strictly as a laboratory reference material for research use only — not for human or veterinary use.

Researcher reviews

No researcher reviews yet for TB-500. Verified reviews from researchers appear here after a completed order.