Repair & Regenerative ≥99% purity 2 COAs on file

TB-500

Thymosin Beta-4 fragment (Ac-SDKP extended)

A synthetic fragment of the thymosin beta-4 protein, used as an actin-binding reference peptide in cytoskeletal research.

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$39.97
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Third-party HPLC-UV and LC-MS on every lot
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Batch COA emailed with your dispatch notice
Research use only. Not for human or veterinary use. Not a drug, food or cosmetic. Handle in accordance with your institution's safety protocols.

TB-500 is the synthetic analogue of the active region of thymosin beta-4, a naturally occurring actin-sequestering protein. Supplied as a sterile-filtered lyophilised powder.

Purity is verified by HPLC-UV and identity by LC-MS on every batch before release.

Research context

Used in cytoskeletal and cell-motility research models. Not for human or veterinary use.

Product name
TB-500
CAS number
77591-33-4
Molecular formula
C212H350N56O78S
Molecular weight
4963.44 g/mol
Sequence
Ac-Ser-Asp-Lys-Pro-Asp-Met-Ala-Glu-Ile-Glu-Lys-Phe-Asp-Lys-Ser-Lys-Leu-Lys-Lys-Thr
Purity
≥99%
Appearance
Lyophilised white powder
Solubility
Soluble in sterile or bacteriostatic water
Storage
Store at -20°C, protect from light
Reconstitution
Add bacteriostatic water slowly down the vial wall; swirl gently, do not vortex.
Shipping
Ambient with insulated packaging; lyophilised powder is stable in transit.
Handling
Use appropriate PPE. For laboratory research only — do not administer to humans or animals.
BatchTestedLab PurityIdentity Content
PQX26071021 Jul 14, 2026 Janoshik Analytical 98.7% Confirmed Pass Open
PQX26071028 Jul 13, 2026 Colmaric Analyticals 99.12% Confirmed Pass Open

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