TB-500

Name: TB-500
Brand: Peptinium Labs
SKU: tb-500
Price: 64.00 EUR
Availability: InStock
Rating: 5.0 (1 reviews)

Synthetic fragment of Thymosin β4 — in vitro study tool for cell migration and angiogenesis.

DosagePurity ≥ 99.0% (HPLC)

€64.00per 5 mg vial

i.e. €12.80 per mg

QuantityHalloween 2 + 1

3 vials: the cheapest item is free at checkout. Estimate for this product alone; the discount is applied at payment, across your whole cart.

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Shipped within 24 business hours from France, in neutral packaging.

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Janoshik certificateAnalysis no. 89630, purity 99.188% (10.88 mg)Commissioned by: third-party reportVerify

A question about this product?

Research Use Only — Laboratory use exclusively. Not intended for veterinary, diagnostic or therapeutic use. No indication for in vivo use. To be handled exclusively by qualified personnel.

Literature

What the literature describes

TB-500 reproduces the active sequence of Thymosin β4 (Tβ4), an endogenous peptide involved in regulating the actin cytoskeleton. Studies (PMID 14500546, PMID 11311852) describe sequestration of G-actin, modulating F-actin polymerization and promoting cell migration (keratinocytes, endothelial cells, stem cells). At the angiogenic level, TB-500 stimulates capillary tube formation by HUVECs and activates the PINCH-ILK-α-parvin pathway. Preclinical models also describe modulation of pro-inflammatory cytokines. No direct hormonal effect has been reported. These data come from the scientific literature and are provided strictly for informational purposes in a research context. This product is not intended for veterinary, diagnostic or therapeutic use and is not recommended for any use outside a scientific, professional and research setting. [1][2]

Research background: Synthetic peptide corresponding to an active fragment of Thymosin β4, used for the in vitro study of G-actin sequestration.
Reconstitution (lab): Sterile bacteriostatic water. Dilution calculator

Chemical identity

What the vial contains

Reference data for the compound. Measured values appear on the Janoshik certificate, when published.

Research name: TB-500
CAS No.: 77591-33-4
Molecular formula: C212H350N56O78S
Molecular weight: 4963.4 g/mol
Specified purity: ≥ 99.0% (HPLC)
Vial content: 5 mg
Storage: Lyophilized: refrigerated (2–8 °C) from receipt, protected from light, or at −20 °C for long-term storage; it tolerates a few days of shipping at room temperature with no expected degradation. Reconstituted: refrigerated (2–8 °C).
Database: PubChem

Independent analysis

Certificate for 5 mg

Report from Janoshik Analytical, an independent laboratory, for this exact dosage. The data below are taken from the report.

Janoshik certificate for this dosageCommissioned by: third-party report

Purity: 99.188% (10.88 mg)
Janoshik task: #89630
Tested: 21/11/2025

View the report Verify at Janoshik

Questions

Frequently asked questions

What does a vial of TB-500 contain?

Each vial contains lyophilised TB-500, available in 5 mg. Purity ≥ 99.0% (HPLC), tested by an independent laboratory.

How can I check the purity of TB-500?

The Janoshik Analytical (independent laboratory) certificates we hold are shown on this page for the matching dosage and can be verified directly on the laboratory's website. For a dosage without a published certificate, testing is in progress or available on request.

How should TB-500 be stored?

Lyophilized: refrigerated (2–8 °C) from receipt, protected from light, or at −20 °C for long-term storage; it tolerates a few days of shipping at room temperature with no expected degradation. Reconstituted: refrigerated (2–8 °C).

How is TB-500 reconstituted in the laboratory?

Sterile bacteriostatic water. The site's dilution calculator helps prepare the desired concentration.

Is TB-500 intended for human use?

No. TB-500 is a research reagent (RUO) intended exclusively for in vitro laboratory research. It is not intended for human or veterinary use, nor for diagnosing, preventing or treating any disease.

References