TB-500 is listed here as thymosin beta-4 acetate, a 43-amino-acid research peptide with CAS number 77591-33-4 and molecular weight of approximately 4963.44 Da. It has been studied for its role in cell migration, blood vessel formation, and tissue repair processes. Sold for research use only.

What purity is your TB-500?

Our TB-500 is independently tested by Janoshik Analytical (ISO 17025 accredited) at 99%+ purity via HPLC. The Certificate of Analysis is published on the product page.

TB-500 10mg Batch 003 Horizon Analytical purity COA

TB-500 10mg Batch 003 Horizon Analytical endotoxin COA

Tissue Research

TB-500

Full-Length Thymosin β4 Acetate

Price range: $72.90 through $619.65

Strength

10mg

Pack Size

Single vial
10-vial kit

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COA

Horizon testing results

10mg · Batch B003B · Horizon support

HPLC purity 99.34% Horizon CP-8408241-P Measured mass 10.15 mg Horizon CP-8408241-P Identity Verified Horizon CP-8408241-P Endotoxin Below 0.05 EU/mL Horizon CP-8408241-E

Vanguard full panel

10mg · Batch B003B

HPLC purity 98.56% +/- 0.18% Vanguard V260804-17 001 · COA lot B003; internal batch B003B Measured mass 10.22 mg Vanguard V260804-17 001 · COA lot B003; internal batch B003B Identity Pass Matches reference standard · HPLC-UV/VIS · Vanguard V260804-17 001 Endotoxins Pass - 6.84 EU/mg LAL screen · Vanguard V260804-17 001

Sterility Pending Final Vanguard sterility result pending

Heavy metals Pass As/Cd/Pb/Hg non-detect · LOQ: As/Cd/Pb 0.01 ppm; Hg 0.005 ppm

BatchTrace archive View prior batch COAs and verification links

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.

Compound Specifications

CAS
77591-33-4

MW
4963.44 Da

Purity
98.56%

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.

Research Library

Published scientific background, literature notes, and compound context for TB-500.

Read the TB-500 research page →

Documentation & Lab Use

Form: Lyophilized research material
Documentation: Review the product label, batch records, and applicable laboratory SOPs before accessioning.

For research use only — not for human consumption

Need a different size? Let us know →

Additional information

Additional information

Weight	0.94 oz
Strength	10mg
Pack Size	Single vial, 10-vial kit

⚠️ 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: Tissue Research

TB-500

Additional information

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