← Catalog
TB-4/TB-500Research Use Only
Healing / recovery

TB-4/TB-500

PR-TB4TB500 · ≥99%

TB-4/TB-500 is full-length thymosin beta-4, the 43-amino-acid actin-sequestering peptide from which the shorter TB-500 fragment is derived.

Quantity & savings
1
20mg · $150.00
1
  • ✓Lyophilized and sealed under sterile, controlled conditions
  • ✓Purity ≥99%, mass-spectrometry and analytical HPLC verified
  • ✓Fully traceable from first synthesis to sealed vial
  • ✓Certificate of analysis (CoA) included with every vial

Ships cold-safe · discreet packaging · tracked delivery.

Lab results

Certificate of Analysis 99.45%Endotoxin Report PASSVerify this lotAuthentic →

Research Use Only

These compounds are NOT intended for human consumption, clinical use, or veterinary applications. We are not affiliated with any pharmaceutical companies or their commercial medications. By placing an order, you certify these materials will be used exclusively for in vitro testing and laboratory experimentation only. Bodily introduction of any kind into humans or animals is strictly forbidden by law. This product should only be handled by licensed, qualified professionals. This product is not a drug, food, or cosmetic and may not be misbranded, misused or mislabeled as a drug, food or cosmetic.

Verified PureLab TestedPremium GradeQuality Assured

About TB-4/TB-500

TB-4/TB-500 is full-length thymosin beta-4, the 43-amino-acid actin-sequestering peptide from which the shorter TB-500 fragment is derived. Supplied as the complete protein, it lets research teams study the entire molecule's activity in actin dynamics, cell migration, angiogenesis, and tissue-repair signaling rather than the isolated actin-binding motif alone. Puritide Research supplies TB-4/TB-500 as a high-purity, research-use-only material, synthesized for in vitro and animal-model work and backed by third-party-verified certificates of analysis so your data rests on consistent, documented quality.

Available Sizes

  • ›TB-4/TB-500 20mg Vial

Product Specifications

Application
Full-length thymosin beta-4 actin, migration, and tissue-repair research
Appearance
Solid, white lyophilized powder in a sealed glass vial
Chemical Formula
C212H350N56O78S
CAS Number
77591-33-4
Molecular Weight
~4963.44 g/mol
Synonyms
TB-4, TB-500, Thymosin beta-4, Thymosin β4, Tβ4 (full-length, 43 residues)
Storage
Store at ≤25°C, sealed, away from heat, light, and moisture. For extended storage, keep lyophilized and refrigerated or frozen.

What Is TB-4/TB-500?

TB-4/TB-500 is full-length thymosin beta-4 (Tβ4), a 43-amino-acid peptide and the most abundant member of the beta-thymosin family in mammalian tissue. It is characterized by an N-terminally acetylated serine and functions primarily as a G-actin-sequestering peptide. The naming reflects that TB-500 is the shorter actin-binding fragment (Ac-LKKTETQ) of this parent molecule; TB-4/TB-500 refers to the complete protein.

In experimental settings, TB-4/TB-500 is used to study actin sequestration, cytoskeletal remodeling, cell migration, angiogenesis, and the anti-inflammatory and tissue-repair signaling attributed to thymosin beta-4. Working with the full-length molecule allows researchers to examine activity beyond the isolated actin-binding motif.

Present understanding derives from in vitro assays and animal models. Findings should be interpreted within their experimental context and not treated as established outcomes. Puritide Research supplies TB-4/TB-500 strictly for laboratory use; it is not approved for human or veterinary application.

Puritide Research supplies TB-4/TB-500 strictly for laboratory research use. Not for human or veterinary use.

Researcher ratings

No ratings yet for TB-4/TB-500. Ordered this compound? Score your experience below.

More in Healing & Recovery

ARA-290≥99%
PR-ARA290 · 10mg
ARA-290
$45.00
PR-ARA290 · ≥99%

ARA-290

Healing / recovery

ARA-290 (cibinetide) is a synthetic 11-amino-acid peptide derived from the helix B region of erythropoietin, engineered to retain tissue-protective signaling while omitting the red-blood-cell-stimulating activity of the parent hormone.

Certificate of AnalysisLOT #ARA153547-21V · 99.47%PASS
$45.00
View full details →
BPC-157 5mg≥99%
PR-BPC157 · 5mg
BPC-157
from $25.00
PR-BPC157 · ≥99%

BPC-157

cytoprotective signalling

Synthetic pentadecapeptide studied in soft-tissue and gastrointestinal regenerative-signalling research. Lyophilized.

Certificate of AnalysisLOT #BPC158010-31I · 99.70%PASS
Select size
$25.00
View full details →
BPC/TB500 Blend 5+5mg≥99%
PR-BPCTB500BLEND-5 · 5+5mg
BPC/TB500 Blend
from $85.00
PR-BPCTB500BLEND-5 · ≥99%

BPC/TB500 Blend

Healing / recovery

The BPC/TB500 Blend combines two widely studied tissue-repair research peptides — BPC-157, a stable gastric pentadecapeptide, and TB-500, the actin-binding fragment of thymosin beta-4 — in a single vial.

Certificate of AnalysisLOT #BPC158070-32S · 99.70%PASS
Select size
$85.00
View full details →