All products are sold for Research Use Only. They are not drugs, foods, supplements, or cosmetics, are not approved by the FDA, and are not intended to diagnose, treat, cure, or prevent any disease, or for human or veterinary consumption. To continue you confirm that you are a qualified research professional aged 21 or older.
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For Laboratory & Research Use Only — Not for Human or Veterinary Use
TB-500 is a synthetic peptide fragment derived from thymosin beta-4, used in laboratory research for cellular migration and protein interaction studies. HPLC-purified to research-grade standards, it is suitable for controlled biochemical research and assay applications.
99.9% Purity
Research Grade
COA Verified
Third-Party Tested
$100.00
The Purity GuaranteeVerified ≥99% by HPLC & mass spectrometry, third-party tested, with a lot-matched Certificate of Analysis on every vial.
Certificate of Analysis available for every lot
≥99% purity, HPLC & mass-spec verified
Ships from a U.S. facility — same-day before 12pm CT
Secure checkout · Free shipping on orders $300+
Synthetic Thymosin Beta-4 Fragment for Laboratory Evaluation
Technical Overview
TB-500 is a synthetic peptide fragment derived from the active region of thymosin beta-4. In laboratory environments, thymosin peptides are commonly investigated for their biochemical properties and roles in cellular migration and structural protein interactions. TB-500 is synthesized using solid-phase peptide synthesis and purified via HPLC techniques to achieve research-use purity.
Specifications
Molecular Formula: C212H350N56O78 Molecular Weight: 4963.4 g/mol Purity: ≥ 99% (HPLC Verified) Format: Lyophilized White Powder Storage: Store at −20°C.
Research Disclaimer
This product is a synthesized reagent for in vitro laboratory research only.
Purity≥99% by HPLC · COA available
CAS Number885340-08-9
Molecular FormulaC38H68N10O14
Molecular Weight889.02
Amino Acid Count7
SequenceAc-Leu-Lys-Lys-Thr-Glu-Thr-Gln-OH (Thymosin β4 17-23 active fragment)
Physical FormLyophilized powder
SolubilitySoluble in bacteriostatic water; consult the product COA for specific solvent recommendations.
StorageStore lyophilized at -20°C; protect from light and moisture. Reconstitute with bacteriostatic water; refrigerate reconstituted solution at 2-8°C.
Answers
Frequently Asked Questions
Is TB-500 third-party tested?
Yes. Every lot is independently third-party tested for identity and purity — ≥99% by HPLC and mass spectrometry — with a lot-matched Certificate of Analysis available to download on this page.
Can I see the Certificate of Analysis before buying?
Yes. A lot-matched COA is available on this product page and in our COA library before purchase, documenting identity, purity, and full analytical results.
What does 'Research Use Only' mean?
This product is supplied strictly for laboratory and research use only (RUO). It is not a drug, food, supplement, or cosmetic, is not approved by the FDA, and is not intended to diagnose, treat, cure, or prevent any disease, or for human or veterinary consumption.
How is it shipped and stored?
Orders placed before 12pm CT typically ship the same business day from our U.S. facility with tracking. Store the lyophilized material at -20°C, protected from light and moisture.
