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TB-500 supplies the synthetic 43-amino acid sequence corresponding to the active actin-sequestering domain of endogenous Thymosin Beta-4, N-terminal acetylated for enhanced enzymatic stability in assay media. It is investigated in cellular motility models for its capacity to sequester monomeric G-actin, regulate actin polymerization kinetics, and support cytoskeletal reorganization during cellular migration assays. Supplied strictly for laboratory research. Not for human or veterinary use.

Chemical & Analytical Specifications

Compound Identifier TB-500 (Thymosin Beta-4)
Sequence / Structure Ac-Ser-Asp-Lys-Pro-Asp-Met-Ala-Glu-Ile-Glu-Lys-Phe-Asp-Lys-Ser-Lys-Leu-Lys-Lys-Thr-Glu-Thr-Gln-Glu-Lys-Asn-Pro-Leu-Pro-Ser-Lys-Glu-Thr-Ile-Glu-Gln-Glu-Lys-Gln-Ala-Gly-Glu-Ser
Molecular Formula C212H350N56O78S
Molecular Weight 4963.5 g/mol
CAS Number 77591-33-4
Purity Specification ≥99.0% (HPLC & Mass Spectrometry)
Supplied Format Lyophilized vial / nasal spray / autoinjector
Research Classification Actin-sequestering peptide / cell motility inquiry

Laboratory Handling & Solvent Protocols

To preserve structural integrity and peptide purity, lyophilized materials should be maintained at -20°C in an airtight container protected from ambient moisture and light. Reconstitution should be conducted under sterile conditions using bacteriostatic water (0.9% benzyl alcohol) or sterile laboratory saline. Allow the diluent to run gently down the interior vial wall; avoid vigorous shaking or vortexing to prevent shear-induced degradation. Reconstituted aliquots must be stored at 2°C to 8°C and evaluated within 28 to 30 days.

REGULATORY COMPLIANCE NOTICE All èvelan research products are strictly synthesized and supplied for laboratory research, analytical characterization, and scientific assay evaluation only. These materials are not intended, formulated, or approved for human, clinical, veterinary, or diagnostic application. Distribution is restricted to authorized personnel who affirm adherence to relevant institutional and laboratory safety protocols.

TB-500 (Thymosin Beta-4)

$45.14

Research Pathways & Profile

TB-500 supplies the synthetic 43-amino acid sequence corresponding to the active actin-sequestering domain of endogenous Thymosin Beta-4, N-terminal acetylated for enhanced enzymatic stability in assay media. It is investigated in cellular motility models for its capacity to sequester monomeric G-actin, regulate actin polymerization kinetics, and support cytoskeletal reorganization during cellular migration assays. Supplied strictly for laboratory research. Not for human or veterinary use.

Format & Concentration: 5mg Lyophilized Vial
≥99% HPLC Analytical Standard
Synthesized in Certified Facility
Direct Express Lab Fulfillment
Analytical Specifications & Sequence

Sequence: Ac-Ser-Asp-Lys-Pro-Asp-Met-Ala-Glu-Ile-Glu-Lys-Phe-Asp-Lys-Ser-Lys-Leu-Lys-Lys-Thr-Glu-Thr-Gln-Glu-Lys-Asn-Pro-Leu-Pro-Ser-Lys-Glu-Thr-Ile-Glu-Gln-Glu-Lys-Gln-Ala-Gly-Glu-Ser | Formula: C212H350N56O78S | Molecular Weight: 4963.5 g/mol | CAS Number: 77591-33-4 | Purity: ≥99.0% (RP-HPLC, ESI-MS) | Sterile Lyophilized Formulation.

Handling, Solvent & Storage Guidelines

Laboratory Assay Standard. Storage: -20°C (lyophilized powder, protected from light) or 2°C to 8°C (short-term reconstituted solution). Reconstitution: Bacteriostatic water (0.9% benzyl alcohol) via sterile interior wall flow without vortexing. Strictly prohibited for human, veterinary, or clinical use.

1All peptide compounds cataloged are intended exclusively for laboratory research, biochemical assays, and analytical characterization. Strictly not for human, veterinary, diagnostic, or therapeutic administration.
2Analytical purity (≥99%) is validated via High-Performance Liquid Chromatography (HPLC) and Mass Spectrometry (MS). Compound integrity is dependent on adherence to cold-chain storage and inert handling protocols.
3The acquiring entity assumes sole responsibility for regulatory compliance, laboratory safety protocols, and safe handling in accordance with federal, state, and local standards. èvelan expressly disclaims liability for off-label or unapproved application.
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