Thymosin Beta-4 / TB-500-Class Material
Actin-Binding Thymosin Peptide
Actin Binding
Research Use Only
Tissue-Repair Signaling
Evidence: Preclinical / Preliminary

Molecular Data Card
Primary Name
Aliases
Thymosin Beta-4 (reference material)
TB-500-class material (commercial term; chemically ambiguous)
Chemical Class
CAS Number
Actin-binding thymosin peptide
Formula
77591-33-4 (for full-length reference material)
Avg. Mol. Weight
C212H350N56O78S (for referenced full-length material)
Sequence
~4963.44 g/mol (for referenced full-length material)
Terminal States
Structural Verification Required
N-Terminal: Verification Required | C-Terminal: Verification Required
Chemical Ambiguity Note
Emphasize that 'TB-500' is commercially ambiguous and may refer to full-length thymosin beta-4, a fragment, a derivative, or another thymosin-related preparation.
Primary Research Target
Actin-binding and cytoskeletal environments
Research Domain
Tissue Repair & Extracellular Matrix / Cytoskeletal Biology
Molecular Identity & Mechanism
Actin Binding
Thymosin Beta-4 binds specifically to G-actin, sequestering actin monomers to regulate cytoskeletal biology and cellular motility.
Angiogenesis
Promotes endothelial cell migration and vessel formation in wound-healing models and tissue repair signaling pathways.
Tissue-Repair
Influences extracellular matrix Remodeling through increased cell migration and modulation of inflammatory environments.
Important Identity Control
'TB-500' alone is not a sufficient chemical identity. Sequence, molecular weight, MS identity, and terminal state (N-terminal / C-terminal) must be specified to ensure consistent research material classification.
Evidence Assessment
Evidence classification
Translational Chain
Connecting actin sequestration mechanisms to wound-healing models and cellular motility environments.
Research Areas
Actin binding, cytoskeletal biology, cell migration, angiogenesis, tissue-repair signaling, wound-healing models.
Data Assessment
Prioritizing MS identity, sequence verification, and terminal state over generic commercial naming conventions.
Preclinical to Preliminary depending on exact molecular identity and endpoint.
Analytical & QC Considerations
Verification of sequence and molecular identity represents a higher priority than commercial nomenclature for experimental integrity. Research involving Thymosin Beta-4 / TB-500-class material requires comprehensive MS identity and terminal state specification to ensure baseline chemical identity within nonclinical research environments.

Research Context Notice
Thymosin Beta-4 / TB-500-class material is cataloged here strictly for nonclinical research objectives within tissue-repair models and cytoskeletal biology. This information is classified by available preclinical evidence and mechanistic scrutiny. Alford Molecular Research does not support, endorse, or provide instructions for human administration or clinical application.