TB-500
TB-500 Batch 002 testing in progress at Janoshik Analytical
TB-500 Batch B001 Janoshik COA report 112777
Tissue Research

TB-500

Full-Length Thymosin β4 Acetate

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Brief Description

Synthetic thymosin beta-4 acetate research peptide studied in actin regulation, cellular migration, angiogenesis, and tissue remodeling. For research use only — not for human consumption.

Batch Documentation
Current batch status
⏳
Batch 2 · Testing In Progress
Samples currently with Janoshik · Results expected within a few weeks

This product is from our second production run. Samples from Batch 2 are currently with Janoshik Analytical for independent testing. Results will be posted here as they become available.

Verified batch
Batch 1 · 98.48% Purity
Janoshik Analytical · Tested March 2026
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Research & library
Research review
Scientific background, literature, and compound context
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COA library
Browse current and supporting batch documentation
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Scope limit: COAs document analytical testing for research materials. They are not medical-use, diagnostic, or treatment claims.
Batch 002 Transparency Note
Transparency update

Due to recent supply chain and international shipping disruptions, some Batch 002 inventory may include vials produced at different points within our supplier’s production cycle. As a result, researchers may notice minor packaging variations, including differences in vial caps.

These products were sourced from the same established manufacturers we have worked with for ongoing quality and third-party testing. That said, we want to be transparent that Batch 002 may not represent a single uninterrupted production run.

We are already working with our suppliers to strengthen batch-control, packaging, and documentation protocols before Batch 003.

All available testing documentation will continue to be posted with the corresponding products.
Current batch by strength
5mg
Batch 002
10mg
Batch 002
If you need a specific production run, match the selected strength to the batch listed here before opening the COA link.
Compound Specifications
CAS
77591-33-4
MW
4963.44 Da
Purity
98.48%
TB-500 / Thymosin β4 Naming

TB-500 is commonly used as a catalog name in the research peptide market. This product is identified as full-length thymosin β4 acetate — a 43-amino-acid peptide with molecular weight 4963.44 Da — rather than a separately identified shorter TB-500 fragment.

Batch COA/testing documentation is used to verify the material identity.

Storage & Handling
Lyophilized: Stable at room temperature; freezer (−20°C) recommended for long-term storage
Reconstituted: 2–8°C, use within 30 days
Solvent: Bacteriostatic water
For research use only — not for human consumption
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TB-500
TB-500
$46.75 – $67.15Price range: $46.75 through $67.15 SAVE 15%

Additional information

Weight 0.94 oz
Strength

5mg, 10mg
⚠️ Research Use Only — This product is intended exclusively for in vitro laboratory research. Not for human or animal use. Not for diagnostic or therapeutic purposes. Not for resale.
SKU: STG-40-1770339104 Category:

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