For in-vitro research use only. Not for human consumption.
TB500 (Thymosin B4 Acetate)
TB-500 is a synthetic peptide corresponding to the active region of Thymosin Beta-4 (Tβ4), a naturally occurring 43-amino acid protein involved in actin regulation and cell migration. TB-500 binds G-actin (monomeric actin) and promotes actin polymerization, which is central to cell motility, cytoskeletal organization, and tissue remodeling in research models.
TB500 (Thymosin B4 Acetate) definition
TB-500 is a synthetic peptide corresponding to the active region of Thymosin Beta-4 (Tβ4), a naturally occurring 43-amino acid protein involved in actin regulation and cell migration. TB-500 binds G-actin (monomeric actin) and promotes actin polymerization, which is central to cell motility, cytoskeletal organization, and tissue remodeling in research models.
No sequence is listed in the current catalog record for this product.
- CAS
- 77591-33-4
- MW
- 4963.50 g/mol
- Sequence
- Not listed
- Half-life
- Not listed
- Formula
- C212H350N56O78S
- Purity
- 99.48%
- Form
- Lyophilized powder
- Class
- Thymosin Beta-4 Fragment
Reconstitution calculator
Estimate vial concentration and aliquot volume from the selected vial mass, solvent volume, and target research amount.
Calculations are for lab planning only and do not replace the product COA, protocol requirements, or qualified professional review. Confirm solvent compatibility before use.
Compound details.
- CAS Number
- 77591-33-4
- Molecular Weight
- 4963.50 g/mol
- Molecular Formula
- C₂₁₂H₃₅₀N₅₆O₇₈S
- Class
- Thymosin Beta-4 Fragment
- Purity
- ≥99% purity
- Physical Form
- Lyophilized powder
- Storage
- Store at -20°C (long term). Refrigerate after reconstitution.
Research context.
Thymosin Beta-4 and its active fragments have been extensively studied for their roles in wound repair models, angiogenesis, anti-inflammatory signaling, and cardiac tissue research. Published studies in journals including Annals of the New York Academy of Sciences and FASEB Journal have characterized its actin-binding properties and downstream signaling effects.
Verification standard.
Every Nexus Laboratory batch ships with a Certificate of Analysis documenting HPLC purity (target ≥98%), mass spectrometry identity (expected versus observed mass), and endotoxin screening — verified by third-party laboratory testing and publicly archived. Review Nexus lab verification.
TB500 (Thymosin B4 Acetate) is part of the Nexus Healing & Recovery catalog. Tissue repair, immune modulation, and recovery-oriented research peptides. Each listed variant is priced from the consolidated Nexus catalog and intended for qualified research use only.
TODO-COPY: replace with real compound-specific narrative.
The chemistry.
43-amino acid peptide, synthetic fragment of Thymosin Beta-4
Storage: Store at -20°C (long term). Refrigerate after reconstitution.
Technical specifications.
- Product Name: TB-500
- Classification: Thymosin Beta-4 Fragment
- Structural Description: 43-amino acid peptide, synthetic fragment of Thymosin Beta-4
- CAS Number: 77591-33-4
- Molecular Weight: 4963.50 g/mol
- Purity: ≥99% (verified by HPLC and Mass Spectrometry)
- Physical Form: Lyophilized (freeze-dried) powder
- Intended Use: In-vitro research use only — not for human consumption
HPLC trace preview.
Related research compounds
Same category, mechanism overlap, and common research stack pairings.
TB500 (Thymosin B4 Acetate) research FAQ.
What is TB500 (Thymosin B4 Acetate) used for in research?
TB500 (Thymosin B4 Acetate) is supplied for controlled in-vitro research workflows in the Healing & Recovery category. It is not labeled for human or veterinary use.
Is TB500 (Thymosin B4 Acetate) HPLC verified?
TB500 (Thymosin B4 Acetate) is listed with Nexus lab verification. Current catalog records show 99.48% purity context where batch COA data is available.
Which TB500 (Thymosin B4 Acetate) sizes are available?
Current Nexus variants include 2mg, 5mg, 10mg, 20mg.
Does TB500 (Thymosin B4 Acetate) include a COA?
Yes. The current Nexus record links TB500 (Thymosin B4 Acetate) to batch NEX-TB500-THYMOSIN-B4-ACETATE-2026-0086.